id	sid	tid	token	lemma	pos
ap-1880	1	1	acta	acta	PROPN
ap-1880	1	2	polytechnica	polytechnica	PROPN
ap-1880	1	3	doi:10.14311	doi:10.14311	PROPN
ap-1880	1	4	/	/	SYM
ap-1880	1	5	ap.2013.53.0497	ap.2013.53.0497	ADP
ap-1880	1	6	acta	acta	PROPN
ap-1880	1	7	polytechnica	polytechnica	PROPN
ap-1880	1	8	53(supplement):497–499	53(supplement):497–499	NUM
ap-1880	1	9	,	,	PUNCT
ap-1880	1	10	2013	2013	NUM
ap-1880	1	11	©	©	PROPN
ap-1880	1	12	czech	czech	PROPN
ap-1880	1	13	technical	technical	PROPN
ap-1880	1	14	university	university	PROPN
ap-1880	1	15	in	in	ADP
ap-1880	1	16	prague	prague	PROPN
ap-1880	1	17	,	,	PUNCT
ap-1880	1	18	2013	2013	NUM
ap-1880	1	19	available	available	ADJ
ap-1880	1	20	online	online	ADV
ap-1880	1	21	at	at	ADP
ap-1880	1	22	http://ojs.cvut.cz/ojs/index.php/ap	http://ojs.cvut.cz/ojs/index.php/ap	PROPN
ap-1880	1	23	the	the	DET
ap-1880	1	24	first	first	ADJ
ap-1880	1	25	century	century	NOUN
ap-1880	1	26	of	of	ADP
ap-1880	1	27	cosmic	cosmic	ADJ
ap-1880	1	28	rays	ray	NOUN
ap-1880	1	29	,	,	PUNCT
ap-1880	1	30	an	an	DET
ap-1880	1	31	historical	historical	ADJ
ap-1880	1	32	overview	overview	NOUN
ap-1880	1	33	lawrence	lawrence	PROPN
ap-1880	1	34	w.	w.	PROPN
ap-1880	1	35	jones∗	jones∗	PROPN
ap-1880	1	36	university	university	PROPN
ap-1880	1	37	of	of	ADP
ap-1880	1	38	michigan	michigan	PROPN
ap-1880	1	39	∗	∗	NOUN
ap-1880	1	40	corresponding	correspond	VERB
ap-1880	1	41	author	author	NOUN
ap-1880	1	42	:	:	PUNCT
ap-1880	1	43	lwjones@umich.edu	lwjones@umich.edu	VERB
ap-1880	1	44	abstract	abstract	ADJ
ap-1880	1	45	.	.	PUNCT
ap-1880	2	1	the	the	DET
ap-1880	2	2	1912	1912	NUM
ap-1880	2	3	balloon	balloon	NOUN
ap-1880	2	4	flights	flight	NOUN
ap-1880	2	5	of	of	ADP
ap-1880	2	6	victor	victor	PROPN
ap-1880	2	7	hess	hess	PROPN
ap-1880	2	8	and	and	CCONJ
ap-1880	2	9	related	related	ADJ
ap-1880	2	10	activities	activity	NOUN
ap-1880	2	11	in	in	ADP
ap-1880	2	12	those	those	DET
ap-1880	2	13	years	year	NOUN
ap-1880	2	14	are	be	AUX
ap-1880	2	15	reviewed	review	VERB
ap-1880	2	16	.	.	PUNCT
ap-1880	3	1	subsequent	subsequent	ADJ
ap-1880	3	2	research	research	NOUN
ap-1880	3	3	during	during	ADP
ap-1880	3	4	the	the	DET
ap-1880	3	5	early	early	ADJ
ap-1880	3	6	20th	20th	ADJ
ap-1880	3	7	century	century	NOUN
ap-1880	3	8	is	be	AUX
ap-1880	3	9	noted	note	VERB
ap-1880	3	10	,	,	PUNCT
ap-1880	3	11	including	include	VERB
ap-1880	3	12	the	the	DET
ap-1880	3	13	discovery	discovery	NOUN
ap-1880	3	14	of	of	ADP
ap-1880	3	15	the	the	DET
ap-1880	3	16	positron	positron	NOUN
ap-1880	3	17	,	,	PUNCT
ap-1880	3	18	mesons	meson	NOUN
ap-1880	3	19	,	,	PUNCT
ap-1880	3	20	and	and	CCONJ
ap-1880	3	21	air	air	NOUN
ap-1880	3	22	showers	shower	NOUN
ap-1880	3	23	.	.	PUNCT
ap-1880	4	1	the	the	DET
ap-1880	4	2	cosmic	cosmic	PROPN
ap-1880	4	3	ray	ray	PROPN
ap-1880	4	4	–	–	PUNCT
ap-1880	4	5	accelerator	accelerator	NOUN
ap-1880	4	6	interrelations	interrelation	NOUN
ap-1880	4	7	are	be	AUX
ap-1880	4	8	noted	note	VERB
ap-1880	4	9	,	,	PUNCT
ap-1880	4	10	including	include	VERB
ap-1880	4	11	cosmic	cosmic	ADJ
ap-1880	4	12	ray	ray	NOUN
ap-1880	4	13	studies	study	NOUN
ap-1880	4	14	at	at	ADP
ap-1880	4	15	echo	echo	PROPN
ap-1880	4	16	lake	lake	PROPN
ap-1880	4	17	and	and	CCONJ
ap-1880	4	18	mt	mt	PROPN
ap-1880	4	19	.	.	PROPN
ap-1880	4	20	evans	evans	PROPN
ap-1880	4	21	,	,	PUNCT
ap-1880	4	22	colorado	colorado	PROPN
ap-1880	4	23	(	(	PUNCT
ap-1880	4	24	usa	usa	PROPN
ap-1880	4	25	)	)	PUNCT
ap-1880	4	26	.	.	PUNCT
ap-1880	5	1	the	the	DET
ap-1880	5	2	more	more	ADV
ap-1880	5	3	recent	recent	ADJ
ap-1880	5	4	evolution	evolution	NOUN
ap-1880	5	5	of	of	ADP
ap-1880	5	6	cosmic	cosmic	ADJ
ap-1880	5	7	ray	ray	NOUN
ap-1880	5	8	research	research	NOUN
ap-1880	5	9	programs	program	NOUN
ap-1880	5	10	to	to	ADP
ap-1880	5	11	astrophysical	astrophysical	ADJ
ap-1880	5	12	and	and	CCONJ
ap-1880	5	13	cosmological	cosmological	ADJ
ap-1880	5	14	studies	study	NOUN
ap-1880	5	15	,	,	PUNCT
ap-1880	5	16	and	and	CCONJ
ap-1880	5	17	the	the	DET
ap-1880	5	18	major	major	ADJ
ap-1880	5	19	programs	program	NOUN
ap-1880	5	20	such	such	ADJ
ap-1880	5	21	as	as	ADP
ap-1880	5	22	auger	auger	NOUN
ap-1880	5	23	and	and	CCONJ
ap-1880	5	24	ams	am	NOUN
ap-1880	5	25	conclude	conclude	VERB
ap-1880	5	26	this	this	DET
ap-1880	5	27	discussion	discussion	NOUN
ap-1880	5	28	of	of	ADP
ap-1880	5	29	the	the	DET
ap-1880	5	30	century	century	NOUN
ap-1880	5	31	of	of	ADP
ap-1880	5	32	cosmic	cosmic	ADJ
ap-1880	5	33	ray	ray	NOUN
ap-1880	5	34	research	research	NOUN
ap-1880	5	35	.	.	PUNCT
ap-1880	6	1	1	1	X
ap-1880	6	2	.	.	X
ap-1880	6	3	the	the	DET
ap-1880	6	4	hess	hess	PROPN
ap-1880	6	5	discovery	discovery	NOUN
ap-1880	6	6	in	in	ADP
ap-1880	6	7	the	the	DET
ap-1880	6	8	early	early	ADJ
ap-1880	6	9	20th	20th	ADJ
ap-1880	6	10	century	century	NOUN
ap-1880	6	11	,	,	PUNCT
ap-1880	6	12	radiation	radiation	NOUN
ap-1880	6	13	had	have	AUX
ap-1880	6	14	been	be	AUX
ap-1880	6	15	discovered	discover	VERB
ap-1880	6	16	,	,	PUNCT
ap-1880	6	17	radium	radium	NOUN
ap-1880	6	18	(	(	PUNCT
ap-1880	6	19	and	and	CCONJ
ap-1880	6	20	other	other	ADJ
ap-1880	6	21	radioactive	radioactive	ADJ
ap-1880	6	22	elements	element	NOUN
ap-1880	6	23	)	)	PUNCT
ap-1880	6	24	identified	identify	VERB
ap-1880	6	25	,	,	PUNCT
ap-1880	6	26	and	and	CCONJ
ap-1880	6	27	the	the	DET
ap-1880	6	28	ionization	ionization	NOUN
ap-1880	6	29	of	of	ADP
ap-1880	6	30	air	air	NOUN
ap-1880	6	31	(	(	PUNCT
ap-1880	6	32	and	and	CCONJ
ap-1880	6	33	other	other	ADJ
ap-1880	6	34	gasses	gas	NOUN
ap-1880	6	35	)	)	PUNCT
ap-1880	6	36	by	by	ADP
ap-1880	6	37	radiation	radiation	NOUN
ap-1880	6	38	,	,	PUNCT
ap-1880	6	39	detected	detect	VERB
ap-1880	6	40	by	by	ADP
ap-1880	6	41	the	the	DET
ap-1880	6	42	electroscope	electroscope	NOUN
ap-1880	6	43	,	,	PUNCT
ap-1880	6	44	studied	study	VERB
ap-1880	6	45	.	.	PUNCT
ap-1880	7	1	the	the	DET
ap-1880	7	2	fact	fact	NOUN
ap-1880	7	3	that	that	SCONJ
ap-1880	7	4	some	some	DET
ap-1880	7	5	level	level	NOUN
ap-1880	7	6	of	of	ADP
ap-1880	7	7	ionization	ionization	NOUN
ap-1880	7	8	of	of	ADP
ap-1880	7	9	the	the	DET
ap-1880	7	10	air	air	NOUN
ap-1880	7	11	was	be	AUX
ap-1880	7	12	observed	observe	VERB
ap-1880	7	13	everywhere	everywhere	ADV
ap-1880	7	14	was	be	AUX
ap-1880	7	15	interpreted	interpret	VERB
ap-1880	7	16	as	as	ADP
ap-1880	7	17	due	due	ADJ
ap-1880	7	18	to	to	ADP
ap-1880	7	19	residual	residual	ADJ
ap-1880	7	20	traces	trace	NOUN
ap-1880	7	21	of	of	ADP
ap-1880	7	22	radioactive	radioactive	ADJ
ap-1880	7	23	elements	element	NOUN
ap-1880	7	24	in	in	ADP
ap-1880	7	25	the	the	DET
ap-1880	7	26	earth	earth	NOUN
ap-1880	7	27	’s	’s	PART
ap-1880	7	28	crust	crust	NOUN
ap-1880	7	29	(	(	PUNCT
ap-1880	7	30	soil	soil	NOUN
ap-1880	7	31	,	,	PUNCT
ap-1880	7	32	rocks	rock	NOUN
ap-1880	7	33	,	,	PUNCT
ap-1880	7	34	etc	etc	X
ap-1880	7	35	.	.	X
ap-1880	7	36	)	)	PUNCT
ap-1880	7	37	.	.	PUNCT
ap-1880	8	1	in	in	ADP
ap-1880	8	2	1912	1912	NUM
ap-1880	8	3	,	,	PUNCT
ap-1880	8	4	victor	victor	PROPN
ap-1880	8	5	hess	hess	PROPN
ap-1880	8	6	,	,	PUNCT
ap-1880	8	7	an	an	DET
ap-1880	8	8	austrian	austrian	ADJ
ap-1880	8	9	physicist	physicist	NOUN
ap-1880	8	10	,	,	PUNCT
ap-1880	8	11	took	take	VERB
ap-1880	8	12	an	an	DET
ap-1880	8	13	electroscope	electroscope	NOUN
ap-1880	8	14	in	in	ADP
ap-1880	8	15	a	a	DET
ap-1880	8	16	hydrogen	hydrogen	NOUN
ap-1880	8	17	-	-	PUNCT
ap-1880	8	18	filled	fill	VERB
ap-1880	8	19	balloon	balloon	NOUN
ap-1880	8	20	up	up	ADP
ap-1880	8	21	to	to	ADP
ap-1880	8	22	an	an	DET
ap-1880	8	23	altitude	altitude	NOUN
ap-1880	8	24	of	of	ADP
ap-1880	8	25	almost	almost	ADV
ap-1880	8	26	6000	6000	NUM
ap-1880	8	27	meters	meter	NOUN
ap-1880	8	28	(	(	PUNCT
ap-1880	8	29	over	over	ADP
ap-1880	8	30	germany	germany	PROPN
ap-1880	8	31	)	)	PUNCT
ap-1880	8	32	,	,	PUNCT
ap-1880	8	33	and	and	CCONJ
ap-1880	8	34	found	find	VERB
ap-1880	8	35	that	that	SCONJ
ap-1880	8	36	the	the	DET
ap-1880	8	37	atmospheric	atmospheric	ADJ
ap-1880	8	38	ionization	ionization	NOUN
ap-1880	8	39	increased	increase	VERB
ap-1880	8	40	with	with	ADP
ap-1880	8	41	altitude	altitude	NOUN
ap-1880	8	42	by	by	ADP
ap-1880	8	43	about	about	ADV
ap-1880	8	44	a	a	DET
ap-1880	8	45	factor	factor	NOUN
ap-1880	8	46	of	of	ADP
ap-1880	8	47	three	three	NUM
ap-1880	8	48	above	above	ADP
ap-1880	8	49	that	that	PRON
ap-1880	8	50	at	at	ADP
ap-1880	8	51	ground	ground	NOUN
ap-1880	8	52	level	level	NOUN
ap-1880	8	53	,	,	PUNCT
ap-1880	8	54	leading	lead	VERB
ap-1880	8	55	him	he	PRON
ap-1880	8	56	to	to	PART
ap-1880	8	57	conclude	conclude	VERB
ap-1880	8	58	that	that	SCONJ
ap-1880	8	59	there	there	PRON
ap-1880	8	60	was	be	VERB
ap-1880	8	61	a	a	DET
ap-1880	8	62	source	source	NOUN
ap-1880	8	63	of	of	ADP
ap-1880	8	64	ionization	ionization	NOUN
ap-1880	8	65	incident	incident	NOUN
ap-1880	8	66	on	on	ADP
ap-1880	8	67	the	the	DET
ap-1880	8	68	earth	earth	NOUN
ap-1880	8	69	’s	’s	PART
ap-1880	8	70	atmosphere	atmosphere	NOUN
ap-1880	8	71	from	from	ADP
ap-1880	8	72	above	above	ADV
ap-1880	8	73	.	.	PUNCT
ap-1880	9	1	from	from	ADP
ap-1880	9	2	balloon	balloon	NOUN
ap-1880	9	3	flights	flight	NOUN
ap-1880	9	4	during	during	ADP
ap-1880	9	5	a	a	DET
ap-1880	9	6	solar	solar	ADJ
ap-1880	9	7	eclipse	eclipse	NOUN
ap-1880	9	8	,	,	PUNCT
ap-1880	9	9	he	he	PRON
ap-1880	9	10	also	also	ADV
ap-1880	9	11	deduced	deduce	VERB
ap-1880	9	12	that	that	SCONJ
ap-1880	9	13	the	the	DET
ap-1880	9	14	source	source	NOUN
ap-1880	9	15	of	of	ADP
ap-1880	9	16	this	this	DET
ap-1880	9	17	radiation	radiation	NOUN
ap-1880	9	18	was	be	AUX
ap-1880	9	19	not	not	PART
ap-1880	9	20	the	the	DET
ap-1880	9	21	sun	sun	NOUN
ap-1880	9	22	.	.	PUNCT
ap-1880	10	1	hess	hess	PROPN
ap-1880	10	2	’	'	PUNCT
ap-1880	10	3	observations	observation	NOUN
ap-1880	10	4	were	be	AUX
ap-1880	10	5	confirmed	confirm	VERB
ap-1880	10	6	by	by	ADP
ap-1880	10	7	werner	werner	PROPN
ap-1880	10	8	kohlhörster	kohlhörster	NOUN
ap-1880	10	9	,	,	PUNCT
ap-1880	10	10	from	from	ADP
ap-1880	10	11	other	other	ADJ
ap-1880	10	12	balloon	balloon	NOUN
ap-1880	10	13	flights	flight	NOUN
ap-1880	10	14	in	in	ADP
ap-1880	10	15	1913	1913	NUM
ap-1880	10	16	and	and	CCONJ
ap-1880	10	17	1914	1914	NUM
ap-1880	10	18	,	,	PUNCT
ap-1880	10	19	up	up	ADP
ap-1880	10	20	to	to	ADP
ap-1880	10	21	about	about	ADP
ap-1880	10	22	8000	8000	NUM
ap-1880	10	23	m	m	NOUN
ap-1880	10	24	,	,	PUNCT
ap-1880	10	25	showing	show	VERB
ap-1880	10	26	an	an	DET
ap-1880	10	27	increase	increase	NOUN
ap-1880	10	28	(	(	PUNCT
ap-1880	10	29	from	from	ADP
ap-1880	10	30	ground	ground	NOUN
ap-1880	10	31	level	level	NOUN
ap-1880	10	32	)	)	PUNCT
ap-1880	10	33	of	of	ADP
ap-1880	10	34	about	about	ADV
ap-1880	10	35	a	a	DET
ap-1880	10	36	factor	factor	NOUN
ap-1880	10	37	of	of	ADP
ap-1880	10	38	8	8	NUM
ap-1880	10	39	.	.	PUNCT
ap-1880	11	1	robert	robert	PROPN
ap-1880	11	2	millikan	millikan	PROPN
ap-1880	11	3	,	,	PUNCT
ap-1880	11	4	a	a	DET
ap-1880	11	5	very	very	ADV
ap-1880	11	6	well	well	ADV
ap-1880	11	7	-	-	PUNCT
ap-1880	11	8	known	know	VERB
ap-1880	11	9	and	and	CCONJ
ap-1880	11	10	respected	respected	ADJ
ap-1880	11	11	physicist	physicist	NOUN
ap-1880	11	12	at	at	ADP
ap-1880	11	13	that	that	DET
ap-1880	11	14	time	time	NOUN
ap-1880	11	15	,	,	PUNCT
ap-1880	11	16	at	at	ADP
ap-1880	11	17	first	first	ADV
ap-1880	11	18	did	do	AUX
ap-1880	11	19	not	not	PART
ap-1880	11	20	believe	believe	VERB
ap-1880	11	21	the	the	DET
ap-1880	11	22	hess	hess	NOUN
ap-1880	11	23	and	and	CCONJ
ap-1880	11	24	kohlhörster	kohlhörster	ADJ
ap-1880	11	25	results	result	NOUN
ap-1880	11	26	,	,	PUNCT
ap-1880	11	27	but	but	CCONJ
ap-1880	11	28	later	later	ADV
ap-1880	11	29	made	make	VERB
ap-1880	11	30	measurements	measurement	NOUN
ap-1880	11	31	himself	himself	PRON
ap-1880	11	32	which	which	PRON
ap-1880	11	33	convinced	convince	VERB
ap-1880	11	34	him	he	PRON
ap-1880	11	35	of	of	ADP
ap-1880	11	36	their	their	PRON
ap-1880	11	37	validity	validity	NOUN
ap-1880	11	38	,	,	PUNCT
ap-1880	11	39	and	and	CCONJ
ap-1880	11	40	he	he	PRON
ap-1880	11	41	coined	coin	VERB
ap-1880	11	42	the	the	DET
ap-1880	11	43	term	term	NOUN
ap-1880	11	44	“	"	PUNCT
ap-1880	11	45	cosmic	cosmic	ADJ
ap-1880	11	46	rays	ray	NOUN
ap-1880	11	47	”	"	PUNCT
ap-1880	11	48	.	.	PUNCT
ap-1880	12	1	2	2	X
ap-1880	12	2	.	.	X
ap-1880	12	3	early	early	ADJ
ap-1880	12	4	discoveries	discovery	NOUN
ap-1880	12	5	in	in	ADP
ap-1880	12	6	1927	1927	NUM
ap-1880	12	7	,	,	PUNCT
ap-1880	12	8	jacob	jacob	PROPN
ap-1880	12	9	clay	clay	NOUN
ap-1880	12	10	,	,	PUNCT
ap-1880	12	11	using	use	VERB
ap-1880	12	12	an	an	DET
ap-1880	12	13	ionization	ionization	NOUN
ap-1880	12	14	chamber	chamber	NOUN
ap-1880	12	15	,	,	PUNCT
ap-1880	12	16	sailed	sail	VERB
ap-1880	12	17	between	between	ADP
ap-1880	12	18	java	java	PROPN
ap-1880	12	19	and	and	CCONJ
ap-1880	12	20	the	the	DET
ap-1880	12	21	netherlands	netherlands	PROPN
ap-1880	12	22	,	,	PUNCT
ap-1880	12	23	and	and	CCONJ
ap-1880	12	24	observed	observe	VERB
ap-1880	12	25	a	a	DET
ap-1880	12	26	significant	significant	ADJ
ap-1880	12	27	latitude	latitude	NOUN
ap-1880	12	28	effect	effect	NOUN
ap-1880	12	29	(	(	PUNCT
ap-1880	12	30	due	due	ADP
ap-1880	12	31	to	to	ADP
ap-1880	12	32	variations	variation	NOUN
ap-1880	12	33	in	in	ADP
ap-1880	12	34	the	the	DET
ap-1880	12	35	earth	earth	NOUN
ap-1880	12	36	’s	’s	PART
ap-1880	12	37	magnetic	magnetic	ADJ
ap-1880	12	38	field	field	NOUN
ap-1880	12	39	)	)	PUNCT
ap-1880	12	40	.	.	PUNCT
ap-1880	13	1	in	in	ADP
ap-1880	13	2	that	that	DET
ap-1880	13	3	year	year	NOUN
ap-1880	13	4	dmitri	dmitri	PROPN
ap-1880	13	5	skobeltsyn	skobeltsyn	NOUN
ap-1880	13	6	first	first	ADV
ap-1880	13	7	photographed	photograph	VERB
ap-1880	13	8	cosmic	cosmic	ADJ
ap-1880	13	9	ray	ray	NOUN
ap-1880	13	10	tracks	track	NOUN
ap-1880	13	11	in	in	ADP
ap-1880	13	12	a	a	DET
ap-1880	13	13	cloud	cloud	ADJ
ap-1880	13	14	chamber	chamber	NOUN
ap-1880	13	15	.	.	PUNCT
ap-1880	14	1	kohlhorster	kohlhorster	NOUN
ap-1880	14	2	and	and	CCONJ
ap-1880	14	3	walter	walter	PROPN
ap-1880	14	4	bothe	bothe	PROPN
ap-1880	14	5	(	(	PUNCT
ap-1880	14	6	1929	1929	NUM
ap-1880	14	7	)	)	PUNCT
ap-1880	14	8	and	and	CCONJ
ap-1880	14	9	bruno	bruno	PROPN
ap-1880	14	10	rossi	rossi	PROPN
ap-1880	14	11	(	(	PUNCT
ap-1880	14	12	1930	1930	NUM
ap-1880	14	13	)	)	PUNCT
ap-1880	14	14	,	,	PUNCT
ap-1880	14	15	using	use	VERB
ap-1880	14	16	geiger	geiger	NOUN
ap-1880	14	17	–	–	PUNCT
ap-1880	14	18	muller	muller	NOUN
ap-1880	14	19	counters	counter	NOUN
ap-1880	14	20	and	and	CCONJ
ap-1880	14	21	coincidence	coincidence	NOUN
ap-1880	14	22	circuits	circuit	NOUN
ap-1880	14	23	,	,	PUNCT
ap-1880	14	24	found	find	VERB
ap-1880	14	25	that	that	SCONJ
ap-1880	14	26	a	a	DET
ap-1880	14	27	fraction	fraction	NOUN
ap-1880	14	28	of	of	ADP
ap-1880	14	29	cosmic	cosmic	ADJ
ap-1880	14	30	rays	ray	NOUN
ap-1880	14	31	traversed	traverse	VERB
ap-1880	14	32	as	as	ADV
ap-1880	14	33	much	much	ADJ
ap-1880	14	34	as	as	ADP
ap-1880	14	35	25	25	NUM
ap-1880	14	36	cm	cm	NOUN
ap-1880	14	37	of	of	ADP
ap-1880	14	38	lead	lead	NOUN
ap-1880	14	39	.	.	PUNCT
ap-1880	15	1	in	in	ADP
ap-1880	15	2	1933	1933	NUM
ap-1880	15	3	,	,	PUNCT
ap-1880	15	4	rossi	rossi	PROPN
ap-1880	15	5	,	,	PUNCT
ap-1880	15	6	arthur	arthur	PROPN
ap-1880	15	7	compton	compton	PROPN
ap-1880	15	8	,	,	PUNCT
ap-1880	15	9	and	and	CCONJ
ap-1880	15	10	luis	luis	PROPN
ap-1880	15	11	alvarez	alvarez	PROPN
ap-1880	15	12	observed	observe	VERB
ap-1880	15	13	an	an	DET
ap-1880	15	14	east	east	NOUN
ap-1880	15	15	–	–	PUNCT
ap-1880	15	16	west	west	PROPN
ap-1880	15	17	asymmetry	asymmetry	NOUN
ap-1880	15	18	of	of	ADP
ap-1880	15	19	primary	primary	ADJ
ap-1880	15	20	cosmic	cosmic	ADJ
ap-1880	15	21	rays	ray	NOUN
ap-1880	15	22	,	,	PUNCT
ap-1880	15	23	demonstrating	demonstrate	VERB
ap-1880	15	24	that	that	SCONJ
ap-1880	15	25	the	the	DET
ap-1880	15	26	primaries	primary	NOUN
ap-1880	15	27	were	be	AUX
ap-1880	15	28	positive	positive	ADJ
ap-1880	15	29	particles	particle	NOUN
ap-1880	15	30	(	(	PUNCT
ap-1880	15	31	e.g.	e.g.	ADV
ap-1880	15	32	protons	proton	NOUN
ap-1880	15	33	)	)	PUNCT
ap-1880	15	34	.	.	PUNCT
ap-1880	16	1	it	it	PRON
ap-1880	16	2	may	may	AUX
ap-1880	16	3	be	be	AUX
ap-1880	16	4	noted	note	VERB
ap-1880	16	5	that	that	SCONJ
ap-1880	16	6	this	this	PRON
ap-1880	16	7	was	be	AUX
ap-1880	16	8	alvarez	alvarez	PROPN
ap-1880	16	9	’	'	PUNCT
ap-1880	16	10	ph.d	ph.d	PROPN
ap-1880	16	11	.	.	PUNCT
ap-1880	17	1	thesis	thesis	NOUN
ap-1880	17	2	topic	topic	NOUN
ap-1880	17	3	.	.	PUNCT
ap-1880	18	1	marcel	marcel	PROPN
ap-1880	18	2	schein	schein	PROPN
ap-1880	18	3	,	,	PUNCT
ap-1880	18	4	from	from	ADP
ap-1880	18	5	balloon	balloon	NOUN
ap-1880	18	6	flights	flight	NOUN
ap-1880	18	7	in	in	ADP
ap-1880	18	8	1940	1940	NUM
ap-1880	18	9	,	,	PUNCT
ap-1880	18	10	showed	show	VERB
ap-1880	18	11	that	that	SCONJ
ap-1880	18	12	the	the	DET
ap-1880	18	13	primaries	primary	NOUN
ap-1880	18	14	were	be	AUX
ap-1880	18	15	mostly	mostly	ADV
ap-1880	18	16	protons	proton	NOUN
ap-1880	18	17	.	.	PUNCT
ap-1880	19	1	in	in	ADP
ap-1880	19	2	1933	1933	NUM
ap-1880	19	3	,	,	PUNCT
ap-1880	19	4	rossi	rossi	ADJ
ap-1880	19	5	and	and	CCONJ
ap-1880	19	6	(	(	PUNCT
ap-1880	19	7	later	later	ADJ
ap-1880	19	8	)	)	PUNCT
ap-1880	19	9	pierre	pierre	NOUN
ap-1880	19	10	auger	auger	NOUN
ap-1880	19	11	observed	observe	VERB
ap-1880	19	12	the	the	DET
ap-1880	19	13	coincidence	coincidence	NOUN
ap-1880	19	14	of	of	ADP
ap-1880	19	15	cosmic	cosmic	ADJ
ap-1880	19	16	ray	ray	NOUN
ap-1880	19	17	particle	particle	NOUN
ap-1880	19	18	signals	signal	NOUN
ap-1880	19	19	between	between	ADP
ap-1880	19	20	horizontally	horizontally	ADV
ap-1880	19	21	-	-	PUNCT
ap-1880	19	22	separated	separate	VERB
ap-1880	19	23	counters	counter	NOUN
ap-1880	19	24	,	,	PUNCT
ap-1880	19	25	hence	hence	ADV
ap-1880	19	26	the	the	DET
ap-1880	19	27	discovery	discovery	NOUN
ap-1880	19	28	of	of	ADP
ap-1880	19	29	air	air	NOUN
ap-1880	19	30	showers	shower	NOUN
ap-1880	19	31	.	.	PUNCT
ap-1880	20	1	balloon	balloon	NOUN
ap-1880	20	2	experiments	experiment	NOUN
ap-1880	20	3	,	,	PUNCT
ap-1880	20	4	up	up	ADP
ap-1880	20	5	to	to	ADP
ap-1880	20	6	altitudes	altitude	NOUN
ap-1880	20	7	of	of	ADP
ap-1880	20	8	30	30	NUM
ap-1880	20	9	km	km	NOUN
ap-1880	20	10	,	,	PUNCT
ap-1880	20	11	verified	verify	VERB
ap-1880	20	12	that	that	SCONJ
ap-1880	20	13	primary	primary	ADJ
ap-1880	20	14	cosmic	cosmic	ADJ
ap-1880	20	15	rays	ray	NOUN
ap-1880	20	16	included	include	VERB
ap-1880	20	17	he	he	PRON
ap-1880	20	18	plus	plus	CCONJ
ap-1880	20	19	a	a	DET
ap-1880	20	20	small	small	ADJ
ap-1880	20	21	fraction	fraction	NOUN
ap-1880	20	22	of	of	ADP
ap-1880	20	23	heavier	heavy	ADJ
ap-1880	20	24	nuclei	nucleus	NOUN
ap-1880	20	25	,	,	PUNCT
ap-1880	20	26	in	in	ADP
ap-1880	20	27	addition	addition	NOUN
ap-1880	20	28	to	to	ADP
ap-1880	20	29	protons	proton	NOUN
ap-1880	20	30	(	(	PUNCT
ap-1880	20	31	the	the	DET
ap-1880	20	32	primary	primary	ADJ
ap-1880	20	33	,	,	PUNCT
ap-1880	20	34	dominant	dominant	ADJ
ap-1880	20	35	component	component	NOUN
ap-1880	20	36	)	)	PUNCT
ap-1880	20	37	.	.	PUNCT
ap-1880	21	1	before	before	ADP
ap-1880	21	2	the	the	DET
ap-1880	21	3	evolution	evolution	NOUN
ap-1880	21	4	of	of	ADP
ap-1880	21	5	particle	particle	NOUN
ap-1880	21	6	accelerators	accelerator	NOUN
ap-1880	21	7	,	,	PUNCT
ap-1880	21	8	fundamental	fundamental	ADJ
ap-1880	21	9	particle	particle	NOUN
ap-1880	21	10	physics	physics	NOUN
ap-1880	21	11	discoveries	discovery	NOUN
ap-1880	21	12	were	be	AUX
ap-1880	21	13	made	make	VERB
ap-1880	21	14	in	in	ADP
ap-1880	21	15	cosmic	cosmic	ADJ
ap-1880	21	16	ray	ray	NOUN
ap-1880	21	17	studies	study	NOUN
ap-1880	21	18	.	.	PUNCT
ap-1880	22	1	in	in	ADP
ap-1880	22	2	1932	1932	NUM
ap-1880	22	3	carl	carl	PROPN
ap-1880	22	4	anderson	anderson	PROPN
ap-1880	22	5	discovered	discover	VERB
ap-1880	22	6	the	the	DET
ap-1880	22	7	positron	positron	NOUN
ap-1880	22	8	in	in	ADP
ap-1880	22	9	a	a	DET
ap-1880	22	10	cloud	cloud	NOUN
ap-1880	22	11	chamger	chamger	NOUN
ap-1880	22	12	photograph	photograph	NOUN
ap-1880	22	13	of	of	ADP
ap-1880	22	14	cosmic	cosmic	ADJ
ap-1880	22	15	rays	ray	NOUN
ap-1880	22	16	.	.	PUNCT
ap-1880	23	1	later	later	ADV
ap-1880	23	2	(	(	PUNCT
ap-1880	23	3	1936–1937	1936–1937	NUM
ap-1880	23	4	)	)	PUNCT
ap-1880	23	5	,	,	PUNCT
ap-1880	23	6	a	a	DET
ap-1880	23	7	group	group	NOUN
ap-1880	23	8	consisting	consist	VERB
ap-1880	23	9	of	of	ADP
ap-1880	23	10	dr	dr	PROPN
ap-1880	23	11	.	.	PROPN
ap-1880	23	12	anderson	anderson	PROPN
ap-1880	23	13	,	,	PUNCT
ap-1880	23	14	neddermeyer	neddermeyer	PROPN
ap-1880	23	15	,	,	PUNCT
ap-1880	23	16	street	street	PROPN
ap-1880	23	17	,	,	PUNCT
ap-1880	23	18	and	and	CCONJ
ap-1880	23	19	stevenson	stevenson	NOUN
ap-1880	23	20	discovered	discover	VERB
ap-1880	23	21	the	the	DET
ap-1880	23	22	µ-meson	µ-meson	NOUN
ap-1880	23	23	(	(	PUNCT
ap-1880	23	24	now	now	ADV
ap-1880	23	25	known	know	VERB
ap-1880	23	26	as	as	ADP
ap-1880	23	27	the	the	DET
ap-1880	23	28	“	"	PUNCT
ap-1880	23	29	muon	muon	NOUN
ap-1880	23	30	”	"	PUNCT
ap-1880	23	31	,	,	PUNCT
ap-1880	23	32	but	but	CCONJ
ap-1880	23	33	then	then	ADV
ap-1880	23	34	called	call	VERB
ap-1880	23	35	the	the	DET
ap-1880	23	36	“	"	PUNCT
ap-1880	23	37	mesotron	mesotron	NOUN
ap-1880	23	38	”	"	PUNCT
ap-1880	23	39	)	)	PUNCT
ap-1880	23	40	;	;	PUNCT
ap-1880	23	41	a	a	DET
ap-1880	23	42	particle	particle	NOUN
ap-1880	23	43	with	with	ADP
ap-1880	23	44	a	a	DET
ap-1880	23	45	mass	mass	NOUN
ap-1880	23	46	between	between	ADP
ap-1880	23	47	that	that	PRON
ap-1880	23	48	of	of	ADP
ap-1880	23	49	a	a	DET
ap-1880	23	50	proton	proton	NOUN
ap-1880	23	51	(	(	PUNCT
ap-1880	23	52	or	or	CCONJ
ap-1880	23	53	neutron	neutron	NOUN
ap-1880	23	54	)	)	PUNCT
ap-1880	23	55	and	and	CCONJ
ap-1880	23	56	an	an	DET
ap-1880	23	57	electron	electron	NOUN
ap-1880	23	58	(	(	PUNCT
ap-1880	23	59	or	or	CCONJ
ap-1880	23	60	positron	positron	NOUN
ap-1880	23	61	)	)	PUNCT
ap-1880	23	62	.	.	PUNCT
ap-1880	24	1	they	they	PRON
ap-1880	24	2	first	first	ADV
ap-1880	24	3	identified	identify	VERB
ap-1880	24	4	it	it	PRON
ap-1880	24	5	as	as	ADP
ap-1880	24	6	the	the	DET
ap-1880	24	7	yukawa	yukawa	PROPN
ap-1880	24	8	particle	particle	NOUN
ap-1880	24	9	;	;	PUNCT
ap-1880	24	10	the	the	DET
ap-1880	24	11	japanese	japanese	ADJ
ap-1880	24	12	physicist	physicist	NOUN
ap-1880	24	13	h.	h.	PROPN
ap-1880	24	14	yukawa	yukawa	PROPN
ap-1880	24	15	had	have	AUX
ap-1880	24	16	postulated	postulate	VERB
ap-1880	24	17	that	that	SCONJ
ap-1880	24	18	the	the	DET
ap-1880	24	19	strong	strong	ADJ
ap-1880	24	20	interaction	interaction	NOUN
ap-1880	24	21	was	be	AUX
ap-1880	24	22	mediated	mediate	VERB
ap-1880	24	23	by	by	ADP
ap-1880	24	24	a	a	DET
ap-1880	24	25	quantum	quantum	NOUN
ap-1880	24	26	particle	particle	NOUN
ap-1880	24	27	with	with	ADP
ap-1880	24	28	a	a	DET
ap-1880	24	29	rest	rest	NOUN
ap-1880	24	30	mass	mass	NOUN
ap-1880	24	31	lighter	light	ADJ
ap-1880	24	32	than	than	ADP
ap-1880	24	33	that	that	PRON
ap-1880	24	34	of	of	ADP
ap-1880	24	35	the	the	DET
ap-1880	24	36	proton	proton	NOUN
ap-1880	24	37	(	(	PUNCT
ap-1880	24	38	analogous	analogous	ADJ
ap-1880	24	39	to	to	ADP
ap-1880	24	40	the	the	DET
ap-1880	24	41	role	role	NOUN
ap-1880	24	42	of	of	ADP
ap-1880	24	43	the	the	DET
ap-1880	24	44	photon	photon	NOUN
ap-1880	24	45	in	in	ADP
ap-1880	24	46	electromagnetism	electromagnetism	NOUN
ap-1880	24	47	)	)	PUNCT
ap-1880	24	48	.	.	PUNCT
ap-1880	25	1	ten	ten	NUM
ap-1880	25	2	years	year	NOUN
ap-1880	25	3	later	later	ADV
ap-1880	25	4	,	,	PUNCT
ap-1880	25	5	the	the	DET
ap-1880	25	6	pion	pion	NOUN
ap-1880	25	7	(	(	PUNCT
ap-1880	25	8	π	π	NOUN
ap-1880	25	9	-	-	NOUN
ap-1880	25	10	meson	meson	NOUN
ap-1880	25	11	)	)	PUNCT
ap-1880	25	12	was	be	AUX
ap-1880	25	13	discovered	discover	VERB
ap-1880	25	14	by	by	ADP
ap-1880	25	15	lattes	latte	NOUN
ap-1880	25	16	,	,	PUNCT
ap-1880	25	17	occhialini	occhialini	NOUN
ap-1880	25	18	,	,	PUNCT
ap-1880	25	19	and	and	CCONJ
ap-1880	25	20	powell	powell	PROPN
ap-1880	25	21	,	,	PUNCT
ap-1880	25	22	and	and	CCONJ
ap-1880	25	23	found	find	VERB
ap-1880	25	24	to	to	PART
ap-1880	25	25	be	be	AUX
ap-1880	25	26	a	a	DET
ap-1880	25	27	strongly	strongly	ADV
ap-1880	25	28	-	-	PUNCT
ap-1880	25	29	interacting	interact	VERB
ap-1880	25	30	meson	meson	NOUN
ap-1880	25	31	which	which	PRON
ap-1880	25	32	decayed	decay	VERB
ap-1880	25	33	into	into	ADP
ap-1880	25	34	the	the	DET
ap-1880	25	35	muon	muon	NOUN
ap-1880	25	36	with	with	ADP
ap-1880	25	37	a	a	DET
ap-1880	25	38	very	very	ADV
ap-1880	25	39	short	short	ADJ
ap-1880	25	40	half	half	ADJ
ap-1880	25	41	-	-	PUNCT
ap-1880	25	42	life	life	NOUN
ap-1880	25	43	.	.	PUNCT
ap-1880	26	1	in	in	ADP
ap-1880	26	2	those	those	DET
ap-1880	26	3	years	year	NOUN
ap-1880	26	4	(	(	PUNCT
ap-1880	26	5	1947–1953	1947–1953	NUM
ap-1880	26	6	)	)	PUNCT
ap-1880	26	7	the	the	DET
ap-1880	26	8	k	k	NOUN
ap-1880	26	9	-	-	NOUN
ap-1880	26	10	meson	meson	NOUN
ap-1880	26	11	(	(	PUNCT
ap-1880	26	12	or	or	CCONJ
ap-1880	26	13	kaon	kaon	PROPN
ap-1880	26	14	)	)	PUNCT
ap-1880	26	15	was	be	AUX
ap-1880	26	16	discovered	discover	VERB
ap-1880	26	17	by	by	ADP
ap-1880	26	18	powell	powell	PROPN
ap-1880	26	19	,	,	PUNCT
ap-1880	26	20	butler	butler	NOUN
ap-1880	26	21	,	,	PUNCT
ap-1880	26	22	and	and	CCONJ
ap-1880	26	23	rochester	rochester	PROPN
ap-1880	26	24	.	.	PUNCT
ap-1880	27	1	and	and	CCONJ
ap-1880	27	2	,	,	PUNCT
ap-1880	27	3	in	in	ADP
ap-1880	27	4	the	the	DET
ap-1880	27	5	early	early	ADJ
ap-1880	27	6	’	'	PUNCT
ap-1880	27	7	50s	50	NOUN
ap-1880	27	8	(	(	PUNCT
ap-1880	27	9	1951–1953	1951–1953	NUM
ap-1880	27	10	)	)	PUNCT
ap-1880	27	11	,	,	PUNCT
ap-1880	27	12	the	the	DET
ap-1880	27	13	lightest	light	ADJ
ap-1880	27	14	hyperons	hyperon	NOUN
ap-1880	27	15	were	be	AUX
ap-1880	27	16	discovered	discover	VERB
ap-1880	27	17	in	in	ADP
ap-1880	27	18	cloud	cloud	PROPN
ap-1880	27	19	chamber	chamber	NOUN
ap-1880	27	20	studies	study	NOUN
ap-1880	27	21	at	at	ADP
ap-1880	27	22	the	the	DET
ap-1880	27	23	french	french	ADJ
ap-1880	27	24	pic	pic	NOUN
ap-1880	27	25	du	du	PROPN
ap-1880	27	26	midi	midi	PROPN
ap-1880	27	27	research	research	NOUN
ap-1880	27	28	station	station	NOUN
ap-1880	27	29	(	(	PUNCT
ap-1880	27	30	at	at	ADP
ap-1880	27	31	an	an	DET
ap-1880	27	32	elevation	elevation	NOUN
ap-1880	27	33	of	of	ADP
ap-1880	27	34	about	about	ADV
ap-1880	27	35	2850	2850	NUM
ap-1880	27	36	m	m	NOUN
ap-1880	27	37	in	in	ADP
ap-1880	27	38	the	the	DET
ap-1880	27	39	pyrenees	pyrenee	NOUN
ap-1880	27	40	)	)	PUNCT
ap-1880	27	41	;	;	PUNCT
ap-1880	27	42	the	the	DET
ap-1880	27	43	λ	λ	PROPN
ap-1880	27	44	,	,	PUNCT
ap-1880	27	45	σ	σ	PROPN
ap-1880	27	46	,	,	PUNCT
ap-1880	27	47	and	and	CCONJ
ap-1880	27	48	ξ	ξ	X
ap-1880	27	49	particles	particle	NOUN
ap-1880	27	50	.	.	PUNCT
ap-1880	28	1	an	an	DET
ap-1880	28	2	excellent	excellent	ADJ
ap-1880	28	3	summary	summary	NOUN
ap-1880	28	4	of	of	ADP
ap-1880	28	5	these	these	DET
ap-1880	28	6	early	early	ADJ
ap-1880	28	7	milestones	milestone	NOUN
ap-1880	28	8	is	be	AUX
ap-1880	28	9	contained	contain	VERB
ap-1880	28	10	in	in	ADP
ap-1880	28	11	a	a	DET
ap-1880	28	12	physics	physics	NOUN
ap-1880	28	13	today	today	NOUN
ap-1880	28	14	article	article	NOUN
ap-1880	28	15	[	[	X
ap-1880	28	16	1	1	NUM
ap-1880	28	17	]	]	PUNCT
ap-1880	28	18	.	.	PUNCT
ap-1880	29	1	497	497	NUM
ap-1880	29	2	http://dx.doi.org/10.14311/ap.2013.53.0497	http://dx.doi.org/10.14311/ap.2013.53.0497	NOUN
ap-1880	29	3	http://ojs.cvut.cz/ojs/index.php/ap	http://ojs.cvut.cz/ojs/index.php/ap	PROPN
ap-1880	29	4	lawrence	lawrence	PROPN
ap-1880	29	5	w.	w.	PROPN
ap-1880	29	6	jones	jones	PROPN
ap-1880	29	7	acta	acta	PROPN
ap-1880	29	8	polytechnica	polytechnica	PROPN
ap-1880	29	9	3	3	NUM
ap-1880	29	10	.	.	PUNCT
ap-1880	30	1	the	the	DET
ap-1880	30	2	accelerator	accelerator	NOUN
ap-1880	30	3	–	–	PUNCT
ap-1880	30	4	cosmic	cosmic	ADJ
ap-1880	30	5	ray	ray	NOUN
ap-1880	30	6	interaction	interaction	NOUN
ap-1880	30	7	the	the	DET
ap-1880	30	8	first	first	ADJ
ap-1880	30	9	accelerator	accelerator	NOUN
ap-1880	30	10	to	to	PART
ap-1880	30	11	achieve	achieve	VERB
ap-1880	30	12	an	an	DET
ap-1880	30	13	energy	energy	NOUN
ap-1880	30	14	of	of	ADP
ap-1880	30	15	over	over	ADP
ap-1880	30	16	1gev	1gev	PROPN
ap-1880	30	17	was	be	AUX
ap-1880	30	18	named	name	VERB
ap-1880	30	19	the	the	DET
ap-1880	30	20	“	"	PUNCT
ap-1880	30	21	cosmotron	cosmotron	NOUN
ap-1880	30	22	”	"	PUNCT
ap-1880	30	23	–	–	PUNCT
ap-1880	30	24	the	the	DET
ap-1880	30	25	3gev	3gev	NUM
ap-1880	30	26	proton	proton	NOUN
ap-1880	30	27	synchrotron	synchrotron	NOUN
ap-1880	30	28	at	at	ADP
ap-1880	30	29	the	the	DET
ap-1880	30	30	brookhaven	brookhaven	PROPN
ap-1880	30	31	national	national	PROPN
ap-1880	30	32	laboratory	laboratory	PROPN
ap-1880	30	33	(	(	PUNCT
ap-1880	30	34	near	near	ADP
ap-1880	30	35	new	new	PROPN
ap-1880	30	36	york	york	PROPN
ap-1880	30	37	)	)	PUNCT
ap-1880	30	38	.	.	PUNCT
ap-1880	31	1	this	this	DET
ap-1880	31	2	name	name	NOUN
ap-1880	31	3	recognized	recognize	VERB
ap-1880	31	4	the	the	DET
ap-1880	31	5	high	high	ADJ
ap-1880	31	6	-	-	PUNCT
ap-1880	31	7	energy	energy	NOUN
ap-1880	31	8	discoveries	discovery	NOUN
ap-1880	31	9	in	in	ADP
ap-1880	31	10	elementary	elementary	ADJ
ap-1880	31	11	particle	particle	NOUN
ap-1880	31	12	physics	physics	PROPN
ap-1880	31	13	in	in	ADP
ap-1880	31	14	cosmic	cosmic	ADJ
ap-1880	31	15	ray	ray	NOUN
ap-1880	31	16	studies	study	NOUN
ap-1880	31	17	,	,	PUNCT
ap-1880	31	18	and	and	CCONJ
ap-1880	31	19	the	the	DET
ap-1880	31	20	probability	probability	NOUN
ap-1880	31	21	that	that	SCONJ
ap-1880	31	22	this	this	DET
ap-1880	31	23	higher	high	ADJ
ap-1880	31	24	energy	energy	NOUN
ap-1880	31	25	accelerator	accelerator	NOUN
ap-1880	31	26	would	would	AUX
ap-1880	31	27	continue	continue	VERB
ap-1880	31	28	in	in	ADP
ap-1880	31	29	that	that	DET
ap-1880	31	30	path	path	NOUN
ap-1880	31	31	;	;	PUNCT
ap-1880	31	32	which	which	PRON
ap-1880	31	33	indeed	indeed	ADV
ap-1880	31	34	it	it	PRON
ap-1880	31	35	did	do	VERB
ap-1880	31	36	.	.	PUNCT
ap-1880	32	1	the	the	DET
ap-1880	32	2	“	"	PUNCT
ap-1880	32	3	bevatron	bevatron	NOUN
ap-1880	32	4	”	"	PUNCT
ap-1880	32	5	,	,	PUNCT
ap-1880	32	6	at	at	ADP
ap-1880	32	7	the	the	DET
ap-1880	32	8	lawrence	lawrence	PROPN
ap-1880	32	9	berkeley	berkeley	PROPN
ap-1880	32	10	national	national	PROPN
ap-1880	32	11	laboratory	laboratory	PROPN
ap-1880	32	12	(	(	PUNCT
ap-1880	32	13	california	california	PROPN
ap-1880	32	14	)	)	PUNCT
ap-1880	32	15	accelerated	accelerate	VERB
ap-1880	32	16	protons	proton	NOUN
ap-1880	32	17	to	to	ADP
ap-1880	32	18	an	an	DET
ap-1880	32	19	energy	energy	NOUN
ap-1880	32	20	of	of	ADP
ap-1880	32	21	6gev	6gev	PROPN
ap-1880	32	22	(	(	PUNCT
ap-1880	32	23	or	or	CCONJ
ap-1880	32	24	6	6	NUM
ap-1880	32	25	billion	billion	NUM
ap-1880	32	26	electron	electron	NOUN
ap-1880	32	27	volts	volt	NOUN
ap-1880	32	28	)	)	PUNCT
ap-1880	32	29	in	in	ADP
ap-1880	32	30	1955	1955	NUM
ap-1880	32	31	.	.	PUNCT
ap-1880	33	1	soon	soon	ADV
ap-1880	33	2	after	after	ADV
ap-1880	33	3	,	,	PUNCT
ap-1880	33	4	the	the	DET
ap-1880	33	5	anti	anti	ADJ
ap-1880	33	6	-	-	ADJ
ap-1880	33	7	proton	proton	NOUN
ap-1880	33	8	was	be	AUX
ap-1880	33	9	first	first	ADV
ap-1880	33	10	discovered	discover	VERB
ap-1880	33	11	there	there	ADV
ap-1880	33	12	.	.	PUNCT
ap-1880	34	1	with	with	ADP
ap-1880	34	2	the	the	DET
ap-1880	34	3	invention	invention	NOUN
ap-1880	34	4	of	of	ADP
ap-1880	34	5	strong	strong	ADJ
ap-1880	34	6	(	(	PUNCT
ap-1880	34	7	or	or	CCONJ
ap-1880	34	8	alternating	alternate	VERB
ap-1880	34	9	gradient	gradient	NOUN
ap-1880	34	10	)	)	PUNCT
ap-1880	34	11	focusing	focus	VERB
ap-1880	34	12	,	,	PUNCT
ap-1880	34	13	the	the	DET
ap-1880	34	14	brookhaven	brookhaven	NOUN
ap-1880	34	15	and	and	CCONJ
ap-1880	34	16	cern	cern	PROPN
ap-1880	34	17	(	(	PUNCT
ap-1880	34	18	in	in	ADP
ap-1880	34	19	geneva	geneva	PROPN
ap-1880	34	20	,	,	PUNCT
ap-1880	34	21	switzerland	switzerland	PROPN
ap-1880	34	22	)	)	PUNCT
ap-1880	34	23	laboratories	laboratory	NOUN
ap-1880	34	24	both	both	PRON
ap-1880	34	25	built	build	VERB
ap-1880	34	26	proton	proton	NOUN
ap-1880	34	27	synchrotrons	synchrotron	NOUN
ap-1880	34	28	of	of	ADP
ap-1880	34	29	about	about	ADV
ap-1880	34	30	30gev	30gev	NOUN
ap-1880	34	31	,	,	PUNCT
ap-1880	34	32	completed	complete	VERB
ap-1880	34	33	around	around	ADP
ap-1880	34	34	1960	1960	NUM
ap-1880	34	35	.	.	PUNCT
ap-1880	35	1	also	also	ADV
ap-1880	35	2	,	,	PUNCT
ap-1880	35	3	in	in	ADP
ap-1880	35	4	the	the	DET
ap-1880	35	5	mid	mid	NOUN
ap-1880	35	6	-	-	NOUN
ap-1880	35	7	sixties	sixty	NOUN
ap-1880	35	8	,	,	PUNCT
ap-1880	35	9	at	at	ADP
ap-1880	35	10	the	the	DET
ap-1880	35	11	dubna	dubna	PROPN
ap-1880	35	12	laboratory	laboratory	NOUN
ap-1880	35	13	(	(	PUNCT
ap-1880	35	14	north	north	NOUN
ap-1880	35	15	of	of	ADP
ap-1880	35	16	moscow	moscow	PROPN
ap-1880	35	17	)	)	PUNCT
ap-1880	35	18	the	the	DET
ap-1880	35	19	10gev	10gev	NOUN
ap-1880	35	20	synchro	synchro	NOUN
ap-1880	35	21	-	-	PUNCT
ap-1880	35	22	phasetron	phasetron	NOUN
ap-1880	35	23	,	,	PUNCT
ap-1880	35	24	and	and	CCONJ
ap-1880	35	25	at	at	ADP
ap-1880	35	26	the	the	DET
ap-1880	35	27	argonne	argonne	PROPN
ap-1880	35	28	laboratory	laboratory	PROPN
ap-1880	35	29	(	(	PUNCT
ap-1880	35	30	near	near	ADP
ap-1880	35	31	chicago	chicago	PROPN
ap-1880	35	32	)	)	PUNCT
ap-1880	36	1	the	the	DET
ap-1880	36	2	12gev	12gev	ADJ
ap-1880	36	3	zgs	zgs	NOUN
ap-1880	36	4	(	(	PUNCT
ap-1880	36	5	zero	zero	NUM
ap-1880	36	6	-	-	PUNCT
ap-1880	36	7	gradient	gradient	NOUN
ap-1880	36	8	synchrotron	synchrotron	NOUN
ap-1880	36	9	)	)	PUNCT
ap-1880	36	10	were	be	AUX
ap-1880	36	11	completed	complete	VERB
ap-1880	36	12	.	.	PUNCT
ap-1880	37	1	of	of	ADP
ap-1880	37	2	course	course	NOUN
ap-1880	37	3	,	,	PUNCT
ap-1880	37	4	there	there	PRON
ap-1880	37	5	were	be	VERB
ap-1880	37	6	also	also	ADV
ap-1880	37	7	electron	electron	NOUN
ap-1880	37	8	accelerators	accelerator	NOUN
ap-1880	37	9	completed	complete	VERB
ap-1880	37	10	and	and	CCONJ
ap-1880	37	11	operating	operate	VERB
ap-1880	37	12	then	then	ADV
ap-1880	37	13	.	.	PUNCT
ap-1880	38	1	hence	hence	ADV
ap-1880	38	2	,	,	PUNCT
ap-1880	38	3	most	most	ADJ
ap-1880	38	4	of	of	ADP
ap-1880	38	5	the	the	DET
ap-1880	38	6	physicists	physicist	NOUN
ap-1880	38	7	’	'	PUNCT
ap-1880	38	8	studies	study	NOUN
ap-1880	38	9	of	of	ADP
ap-1880	38	10	elementary	elementary	ADJ
ap-1880	38	11	particle	particle	NOUN
ap-1880	38	12	physics	physics	PROPN
ap-1880	38	13	moved	move	VERB
ap-1880	38	14	away	away	ADV
ap-1880	38	15	from	from	ADP
ap-1880	38	16	cosmic	cosmic	ADJ
ap-1880	38	17	rays	ray	NOUN
ap-1880	38	18	and	and	CCONJ
ap-1880	38	19	over	over	ADV
ap-1880	38	20	to	to	ADP
ap-1880	38	21	accelerators	accelerator	NOUN
ap-1880	38	22	during	during	ADP
ap-1880	38	23	these	these	DET
ap-1880	38	24	years	year	NOUN
ap-1880	38	25	(	(	PUNCT
ap-1880	38	26	the	the	DET
ap-1880	38	27	1950s	1950	NOUN
ap-1880	38	28	and	and	CCONJ
ap-1880	38	29	1960s	1960s	NUM
ap-1880	38	30	)	)	PUNCT
ap-1880	38	31	.	.	PUNCT
ap-1880	39	1	in	in	ADP
ap-1880	39	2	the	the	DET
ap-1880	39	3	early	early	ADJ
ap-1880	39	4	1960s	1960	NOUN
ap-1880	39	5	,	,	PUNCT
ap-1880	39	6	with	with	ADP
ap-1880	39	7	the	the	DET
ap-1880	39	8	success	success	NOUN
ap-1880	39	9	of	of	ADP
ap-1880	39	10	the	the	DET
ap-1880	39	11	brookhaven	brookhaven	NOUN
ap-1880	39	12	ags	ag	NOUN
ap-1880	39	13	and	and	CCONJ
ap-1880	39	14	the	the	DET
ap-1880	39	15	cern	cern	ADJ
ap-1880	39	16	ps	ps	NOUN
ap-1880	39	17	,	,	PUNCT
ap-1880	39	18	there	there	PRON
ap-1880	39	19	were	be	VERB
ap-1880	39	20	extensive	extensive	ADJ
ap-1880	39	21	discussions	discussion	NOUN
ap-1880	39	22	among	among	ADP
ap-1880	39	23	the	the	DET
ap-1880	39	24	active	active	ADJ
ap-1880	39	25	physicists	physicist	NOUN
ap-1880	39	26	about	about	ADP
ap-1880	39	27	the	the	DET
ap-1880	39	28	construction	construction	NOUN
ap-1880	39	29	of	of	ADP
ap-1880	39	30	the	the	DET
ap-1880	39	31	next	next	ADJ
ap-1880	39	32	generation	generation	NOUN
ap-1880	39	33	of	of	ADP
ap-1880	39	34	accelerator	accelerator	NOUN
ap-1880	39	35	facilities	facility	NOUN
ap-1880	39	36	and	and	CCONJ
ap-1880	39	37	laboratories	laboratory	NOUN
ap-1880	39	38	;	;	PUNCT
ap-1880	39	39	accelerators	accelerator	NOUN
ap-1880	39	40	with	with	ADP
ap-1880	39	41	an	an	DET
ap-1880	39	42	energy	energy	NOUN
ap-1880	39	43	above	above	ADP
ap-1880	39	44	100gev	100gev	NUM
ap-1880	39	45	.	.	PUNCT
ap-1880	40	1	there	there	PRON
ap-1880	40	2	were	be	VERB
ap-1880	40	3	arguments	argument	NOUN
ap-1880	40	4	and	and	CCONJ
ap-1880	40	5	confusion	confusion	NOUN
ap-1880	40	6	in	in	ADP
ap-1880	40	7	both	both	CCONJ
ap-1880	40	8	europe	europe	PROPN
ap-1880	40	9	and	and	CCONJ
ap-1880	40	10	america	america	PROPN
ap-1880	40	11	concerning	concern	VERB
ap-1880	40	12	where	where	SCONJ
ap-1880	40	13	and	and	CCONJ
ap-1880	40	14	by	by	ADP
ap-1880	40	15	whom	whom	PRON
ap-1880	40	16	such	such	ADJ
ap-1880	40	17	facilities	facility	NOUN
ap-1880	40	18	would	would	AUX
ap-1880	40	19	be	be	AUX
ap-1880	40	20	built	build	VERB
ap-1880	40	21	,	,	PUNCT
ap-1880	40	22	how	how	SCONJ
ap-1880	40	23	they	they	PRON
ap-1880	40	24	would	would	AUX
ap-1880	40	25	be	be	AUX
ap-1880	40	26	financed	finance	VERB
ap-1880	40	27	,	,	PUNCT
ap-1880	40	28	and	and	CCONJ
ap-1880	40	29	how	how	SCONJ
ap-1880	40	30	they	they	PRON
ap-1880	40	31	would	would	AUX
ap-1880	40	32	be	be	AUX
ap-1880	40	33	managed	manage	VERB
ap-1880	40	34	.	.	PUNCT
ap-1880	41	1	such	such	DET
ap-1880	41	2	a	a	DET
ap-1880	41	3	machine	machine	NOUN
ap-1880	41	4	would	would	AUX
ap-1880	41	5	be	be	AUX
ap-1880	41	6	too	too	ADV
ap-1880	41	7	large	large	ADJ
ap-1880	41	8	to	to	PART
ap-1880	41	9	fit	fit	VERB
ap-1880	41	10	on	on	ADP
ap-1880	41	11	the	the	DET
ap-1880	41	12	existing	exist	VERB
ap-1880	41	13	sites	site	NOUN
ap-1880	41	14	of	of	ADP
ap-1880	41	15	cern	cern	NOUN
ap-1880	41	16	or	or	CCONJ
ap-1880	41	17	brookhaven	brookhaven	NOUN
ap-1880	41	18	,	,	PUNCT
ap-1880	41	19	for	for	ADP
ap-1880	41	20	example	example	NOUN
ap-1880	41	21	,	,	PUNCT
ap-1880	41	22	and	and	CCONJ
ap-1880	41	23	there	there	PRON
ap-1880	41	24	were	be	VERB
ap-1880	41	25	intense	intense	ADJ
ap-1880	41	26	discussions	discussion	NOUN
ap-1880	41	27	over	over	ADP
ap-1880	41	28	the	the	DET
ap-1880	41	29	organizational	organizational	ADJ
ap-1880	41	30	structure	structure	NOUN
ap-1880	41	31	required	require	VERB
ap-1880	41	32	to	to	PART
ap-1880	41	33	build	build	VERB
ap-1880	41	34	and	and	CCONJ
ap-1880	41	35	manage	manage	VERB
ap-1880	41	36	such	such	DET
ap-1880	41	37	a	a	DET
ap-1880	41	38	facility	facility	NOUN
ap-1880	41	39	.	.	PUNCT
ap-1880	42	1	4	4	X
ap-1880	42	2	.	.	X
ap-1880	42	3	the	the	DET
ap-1880	42	4	echo	echo	PROPN
ap-1880	42	5	lake	lake	PROPN
ap-1880	42	6	and	and	CCONJ
ap-1880	42	7	mount	mount	PROPN
ap-1880	42	8	evans	evans	PROPN
ap-1880	42	9	research	research	PROPN
ap-1880	42	10	program	program	NOUN
ap-1880	42	11	during	during	ADP
ap-1880	42	12	this	this	DET
ap-1880	42	13	period	period	NOUN
ap-1880	42	14	of	of	ADP
ap-1880	42	15	uncertainty	uncertainty	NOUN
ap-1880	42	16	and	and	CCONJ
ap-1880	42	17	frustration	frustration	NOUN
ap-1880	42	18	in	in	ADP
ap-1880	42	19	the	the	DET
ap-1880	42	20	early	early	ADJ
ap-1880	42	21	1960s	1960	NOUN
ap-1880	42	22	,	,	PUNCT
ap-1880	42	23	at	at	ADP
ap-1880	42	24	an	an	DET
ap-1880	42	25	international	international	ADJ
ap-1880	42	26	high	high	ADJ
ap-1880	42	27	-	-	PUNCT
ap-1880	42	28	energy	energy	NOUN
ap-1880	42	29	physics	physics	NOUN
ap-1880	42	30	meeting	meeting	NOUN
ap-1880	42	31	in	in	ADP
ap-1880	42	32	dubna	dubna	PROPN
ap-1880	42	33	,	,	PUNCT
ap-1880	42	34	a	a	DET
ap-1880	42	35	group	group	NOUN
ap-1880	42	36	of	of	ADP
ap-1880	42	37	us	we	PRON
ap-1880	42	38	were	be	AUX
ap-1880	42	39	discussing	discuss	VERB
ap-1880	42	40	this	this	DET
ap-1880	42	41	situation	situation	NOUN
ap-1880	42	42	,	,	PUNCT
ap-1880	42	43	and	and	CCONJ
ap-1880	42	44	guiseppe	guiseppe	PROPN
ap-1880	42	45	cocconi	cocconi	PROPN
ap-1880	42	46	noted	note	VERB
ap-1880	42	47	that	that	SCONJ
ap-1880	42	48	the	the	DET
ap-1880	42	49	flux	flux	NOUN
ap-1880	42	50	of	of	ADP
ap-1880	42	51	cosmic	cosmic	ADJ
ap-1880	42	52	ray	ray	NOUN
ap-1880	42	53	protons	proton	NOUN
ap-1880	42	54	above	above	ADP
ap-1880	42	55	100gev	100gev	NUM
ap-1880	42	56	,	,	PUNCT
ap-1880	42	57	at	at	ADP
ap-1880	42	58	mountain	mountain	NOUN
ap-1880	42	59	elevations	elevation	NOUN
ap-1880	42	60	,	,	PUNCT
ap-1880	42	61	would	would	AUX
ap-1880	42	62	be	be	AUX
ap-1880	42	63	sufficient	sufficient	ADJ
ap-1880	42	64	to	to	PART
ap-1880	42	65	make	make	VERB
ap-1880	42	66	serious	serious	ADJ
ap-1880	42	67	studies	study	NOUN
ap-1880	42	68	of	of	ADP
ap-1880	42	69	nuclear	nuclear	ADJ
ap-1880	42	70	interactions	interaction	NOUN
ap-1880	42	71	at	at	ADP
ap-1880	42	72	these	these	DET
ap-1880	42	73	energies	energy	NOUN
ap-1880	42	74	.	.	PUNCT
ap-1880	43	1	this	this	PRON
ap-1880	43	2	stimulated	stimulate	VERB
ap-1880	43	3	a	a	DET
ap-1880	43	4	group	group	NOUN
ap-1880	43	5	of	of	ADP
ap-1880	43	6	us	we	PRON
ap-1880	43	7	;	;	PUNCT
ap-1880	43	8	myself	myself	PRON
ap-1880	43	9	and	and	CCONJ
ap-1880	43	10	other	other	ADJ
ap-1880	43	11	midwestern	midwestern	ADJ
ap-1880	43	12	particle	particle	NOUN
ap-1880	43	13	physics	physics	NOUN
ap-1880	43	14	colleagues	colleague	NOUN
ap-1880	43	15	,	,	PUNCT
ap-1880	43	16	to	to	PART
ap-1880	43	17	consider	consider	VERB
ap-1880	43	18	an	an	DET
ap-1880	43	19	experimental	experimental	ADJ
ap-1880	43	20	facility	facility	NOUN
ap-1880	43	21	in	in	ADP
ap-1880	43	22	the	the	DET
ap-1880	43	23	colorado	colorado	NOUN
ap-1880	43	24	mountains	mountain	NOUN
ap-1880	43	25	.	.	PUNCT
ap-1880	44	1	we	we	PRON
ap-1880	44	2	proceeded	proceed	VERB
ap-1880	44	3	to	to	PART
ap-1880	44	4	get	get	VERB
ap-1880	44	5	a	a	DET
ap-1880	44	6	national	national	ADJ
ap-1880	44	7	science	science	PROPN
ap-1880	44	8	foundation	foundation	PROPN
ap-1880	44	9	grant	grant	PROPN
ap-1880	44	10	,	,	PUNCT
ap-1880	44	11	and	and	CCONJ
ap-1880	44	12	,	,	PUNCT
ap-1880	44	13	in	in	ADP
ap-1880	44	14	1965	1965	NUM
ap-1880	44	15	,	,	PUNCT
ap-1880	44	16	equipped	equip	VERB
ap-1880	44	17	a	a	DET
ap-1880	44	18	semi	semi	NOUN
ap-1880	44	19	-	-	NOUN
ap-1880	44	20	trailer	trailer	NOUN
ap-1880	44	21	with	with	ADP
ap-1880	44	22	a	a	DET
ap-1880	44	23	large	large	ADJ
ap-1880	44	24	spark	spark	NOUN
ap-1880	44	25	chamber	chamber	NOUN
ap-1880	44	26	,	,	PUNCT
ap-1880	44	27	proportional	proportional	ADJ
ap-1880	44	28	chambers	chamber	NOUN
ap-1880	44	29	,	,	PUNCT
ap-1880	44	30	plus	plus	CCONJ
ap-1880	44	31	a	a	DET
ap-1880	44	32	hadron	hadron	NOUN
ap-1880	44	33	calorimeter	calorimeter	NOUN
ap-1880	44	34	,	,	PUNCT
ap-1880	44	35	and	and	CCONJ
ap-1880	44	36	took	take	VERB
ap-1880	44	37	it	it	PRON
ap-1880	44	38	to	to	ADP
ap-1880	44	39	the	the	DET
ap-1880	44	40	summit	summit	NOUN
ap-1880	44	41	of	of	ADP
ap-1880	44	42	mt	mt	PROPN
ap-1880	44	43	.	.	PROPN
ap-1880	44	44	evans	evans	PROPN
ap-1880	44	45	,	,	PUNCT
ap-1880	44	46	colorado	colorado	PROPN
ap-1880	44	47	(	(	PUNCT
ap-1880	44	48	elevation	elevation	NOUN
ap-1880	44	49	4300	4300	NUM
ap-1880	44	50	m	m	NOUN
ap-1880	44	51	)	)	PUNCT
ap-1880	44	52	.	.	PUNCT
ap-1880	45	1	this	this	DET
ap-1880	45	2	site	site	NOUN
ap-1880	45	3	,	,	PUNCT
ap-1880	45	4	and	and	CCONJ
ap-1880	45	5	another	another	DET
ap-1880	45	6	lower	low	ADJ
ap-1880	45	7	elevation	elevation	NOUN
ap-1880	45	8	site	site	NOUN
ap-1880	45	9	near	near	ADP
ap-1880	45	10	echo	echo	PROPN
ap-1880	45	11	lake	lake	PROPN
ap-1880	45	12	(	(	PUNCT
ap-1880	45	13	elevation	elevation	NOUN
ap-1880	45	14	3260	3260	NUM
ap-1880	45	15	m	m	NOUN
ap-1880	45	16	)	)	PUNCT
ap-1880	45	17	were	be	AUX
ap-1880	45	18	managed	manage	VERB
ap-1880	45	19	by	by	ADP
ap-1880	45	20	denver	denver	PROPN
ap-1880	45	21	university	university	PROPN
ap-1880	45	22	,	,	PUNCT
ap-1880	45	23	and	and	CCONJ
ap-1880	45	24	had	have	AUX
ap-1880	45	25	earlier	early	ADV
ap-1880	45	26	hosted	host	VERB
ap-1880	45	27	many	many	ADJ
ap-1880	45	28	outstanding	outstanding	ADJ
ap-1880	45	29	cosmic	cosmic	ADJ
ap-1880	45	30	ray	ray	NOUN
ap-1880	45	31	physicists	physicist	NOUN
ap-1880	45	32	,	,	PUNCT
ap-1880	45	33	including	include	VERB
ap-1880	45	34	bruno	bruno	PROPN
ap-1880	45	35	rossi	rossi	PROPN
ap-1880	45	36	,	,	PUNCT
ap-1880	45	37	giuseppi	giuseppi	PROPN
ap-1880	45	38	cocconi	cocconi	PROPN
ap-1880	45	39	,	,	PUNCT
ap-1880	45	40	john	john	PROPN
ap-1880	45	41	wheeler	wheeler	PROPN
ap-1880	45	42	,	,	PUNCT
ap-1880	45	43	marcel	marcel	PROPN
ap-1880	45	44	schein	schein	PROPN
ap-1880	45	45	,	,	PUNCT
ap-1880	45	46	ken	ken	PROPN
ap-1880	45	47	greisen	greisen	PROPN
ap-1880	45	48	,	,	PUNCT
ap-1880	45	49	wayne	wayne	PROPN
ap-1880	45	50	hazen	hazen	PROPN
ap-1880	45	51	,	,	PUNCT
ap-1880	45	52	arthur	arthur	PROPN
ap-1880	45	53	compton	compton	PROPN
ap-1880	45	54	,	,	PUNCT
ap-1880	45	55	and	and	CCONJ
ap-1880	45	56	others	other	NOUN
ap-1880	45	57	.	.	PUNCT
ap-1880	46	1	the	the	DET
ap-1880	46	2	following	follow	VERB
ap-1880	46	3	summer	summer	NOUN
ap-1880	46	4	,	,	PUNCT
ap-1880	46	5	we	we	PRON
ap-1880	46	6	built	build	VERB
ap-1880	46	7	a	a	DET
ap-1880	46	8	larger	large	ADJ
ap-1880	46	9	detector	detector	NOUN
ap-1880	46	10	in	in	ADP
ap-1880	46	11	a	a	DET
ap-1880	46	12	wooden	wooden	ADJ
ap-1880	46	13	building	building	NOUN
ap-1880	46	14	,	,	PUNCT
ap-1880	46	15	leaving	leave	VERB
ap-1880	46	16	the	the	PRON
ap-1880	46	17	adjacent	adjacent	ADJ
ap-1880	46	18	semi	semi	ADJ
ap-1880	46	19	-	-	NOUN
ap-1880	46	20	trailer	trailer	NOUN
ap-1880	46	21	available	available	ADJ
ap-1880	46	22	for	for	ADP
ap-1880	46	23	the	the	DET
ap-1880	46	24	electronics	electronic	NOUN
ap-1880	46	25	and	and	CCONJ
ap-1880	46	26	the	the	DET
ap-1880	46	27	operators	operator	NOUN
ap-1880	46	28	.	.	PUNCT
ap-1880	47	1	the	the	DET
ap-1880	47	2	detector	detector	NOUN
ap-1880	47	3	was	be	AUX
ap-1880	47	4	designed	design	VERB
ap-1880	47	5	to	to	PART
ap-1880	47	6	search	search	VERB
ap-1880	47	7	for	for	ADP
ap-1880	47	8	free	free	ADJ
ap-1880	47	9	quarks	quark	NOUN
ap-1880	47	10	,	,	PUNCT
ap-1880	47	11	possible	possible	ADJ
ap-1880	47	12	cosmic	cosmic	ADJ
ap-1880	47	13	ray	ray	NOUN
ap-1880	47	14	particles	particle	NOUN
ap-1880	47	15	with	with	ADP
ap-1880	47	16	a	a	DET
ap-1880	47	17	charge	charge	NOUN
ap-1880	47	18	(	(	PUNCT
ap-1880	47	19	hence	hence	ADV
ap-1880	47	20	ionization	ionization	NOUN
ap-1880	47	21	)	)	PUNCT
ap-1880	47	22	1/3	1/3	NUM
ap-1880	47	23	or	or	CCONJ
ap-1880	47	24	2/3	2/3	NUM
ap-1880	47	25	that	that	PRON
ap-1880	47	26	of	of	ADP
ap-1880	47	27	known	know	VERB
ap-1880	47	28	particles	particle	NOUN
ap-1880	47	29	,	,	PUNCT
ap-1880	47	30	e.g.	e.g.	ADV
ap-1880	47	31	of	of	ADP
ap-1880	47	32	relativistic	relativistic	ADJ
ap-1880	47	33	cosmic	cosmic	ADJ
ap-1880	47	34	ray	ray	NOUN
ap-1880	47	35	muons	muon	NOUN
ap-1880	47	36	.	.	PUNCT
ap-1880	48	1	the	the	DET
ap-1880	48	2	detector	detector	NOUN
ap-1880	48	3	included	include	VERB
ap-1880	48	4	two	two	NUM
ap-1880	48	5	3	3	NUM
ap-1880	48	6	-	-	PUNCT
ap-1880	48	7	layer	layer	NOUN
ap-1880	48	8	multi	multi	ADJ
ap-1880	48	9	-	-	ADJ
ap-1880	48	10	wire	wire	ADJ
ap-1880	48	11	gas	gas	NOUN
ap-1880	48	12	proportional	proportional	ADJ
ap-1880	48	13	counters	counter	NOUN
ap-1880	48	14	,	,	PUNCT
ap-1880	48	15	each	each	PRON
ap-1880	48	16	of	of	ADP
ap-1880	48	17	about	about	ADV
ap-1880	48	18	2	2	NUM
ap-1880	48	19	square	square	ADJ
ap-1880	48	20	meters	meter	NOUN
ap-1880	48	21	area	area	NOUN
ap-1880	48	22	;	;	PUNCT
ap-1880	48	23	below	below	ADP
ap-1880	48	24	these	these	PRON
ap-1880	48	25	were	be	AUX
ap-1880	48	26	a	a	DET
ap-1880	48	27	2	2	NUM
ap-1880	48	28	-	-	PUNCT
ap-1880	48	29	section	section	NOUN
ap-1880	48	30	wide	wide	ADJ
ap-1880	48	31	gap	gap	NOUN
ap-1880	48	32	spark	spark	NOUN
ap-1880	48	33	chamber	chamber	PROPN
ap-1880	48	34	and	and	CCONJ
ap-1880	48	35	beneath	beneath	ADP
ap-1880	48	36	that	that	PRON
ap-1880	48	37	a	a	DET
ap-1880	48	38	7	7	NUM
ap-1880	48	39	-	-	PUNCT
ap-1880	48	40	layer	layer	NOUN
ap-1880	48	41	iron	iron	NOUN
ap-1880	48	42	and	and	CCONJ
ap-1880	48	43	scintillation	scintillation	NOUN
ap-1880	48	44	counter	counter	NOUN
ap-1880	48	45	hadron	hadron	NOUN
ap-1880	48	46	calorimeter	calorimeter	NOUN
ap-1880	48	47	.	.	PUNCT
ap-1880	49	1	of	of	ADP
ap-1880	49	2	course	course	NOUN
ap-1880	49	3	,	,	PUNCT
ap-1880	49	4	the	the	DET
ap-1880	49	5	quark	quark	NOUN
ap-1880	49	6	search	search	NOUN
ap-1880	49	7	was	be	AUX
ap-1880	49	8	primarily	primarily	ADV
ap-1880	49	9	carried	carry	VERB
ap-1880	49	10	out	out	ADP
ap-1880	49	11	by	by	ADP
ap-1880	49	12	the	the	DET
ap-1880	49	13	6	6	NUM
ap-1880	49	14	independent	independent	ADJ
ap-1880	49	15	ionization	ionization	NOUN
ap-1880	49	16	measurements	measurement	NOUN
ap-1880	49	17	,	,	PUNCT
ap-1880	49	18	while	while	SCONJ
ap-1880	49	19	the	the	DET
ap-1880	49	20	other	other	ADJ
ap-1880	49	21	detectors	detector	NOUN
ap-1880	49	22	were	be	AUX
ap-1880	49	23	early	early	ADJ
ap-1880	49	24	feasibility	feasibility	NOUN
ap-1880	49	25	models	model	NOUN
ap-1880	49	26	of	of	ADP
ap-1880	49	27	components	component	NOUN
ap-1880	49	28	we	we	PRON
ap-1880	49	29	would	would	AUX
ap-1880	49	30	possibly	possibly	ADV
ap-1880	49	31	use	use	VERB
ap-1880	49	32	in	in	ADP
ap-1880	49	33	a	a	DET
ap-1880	49	34	much	much	ADV
ap-1880	49	35	larger	large	ADJ
ap-1880	49	36	detector	detector	NOUN
ap-1880	49	37	.	.	PUNCT
ap-1880	50	1	this	this	DET
ap-1880	50	2	detector	detector	NOUN
ap-1880	50	3	was	be	AUX
ap-1880	50	4	initially	initially	ADV
ap-1880	50	5	located	locate	VERB
ap-1880	50	6	on	on	ADP
ap-1880	50	7	the	the	DET
ap-1880	50	8	mt	mt	PROPN
ap-1880	50	9	.	.	PROPN
ap-1880	50	10	evans	evans	PROPN
ap-1880	50	11	summit	summit	PROPN
ap-1880	50	12	,	,	PUNCT
ap-1880	50	13	however	however	ADV
ap-1880	50	14	the	the	DET
ap-1880	50	15	road	road	NOUN
ap-1880	50	16	to	to	ADP
ap-1880	50	17	the	the	DET
ap-1880	50	18	summit	summit	NOUN
ap-1880	50	19	was	be	AUX
ap-1880	50	20	only	only	ADV
ap-1880	50	21	open	open	ADJ
ap-1880	50	22	during	during	ADP
ap-1880	50	23	the	the	DET
ap-1880	50	24	three	three	NUM
ap-1880	50	25	summer	summer	NOUN
ap-1880	50	26	months	month	NOUN
ap-1880	50	27	,	,	PUNCT
ap-1880	50	28	so	so	ADV
ap-1880	50	29	,	,	PUNCT
ap-1880	50	30	to	to	PART
ap-1880	50	31	maintain	maintain	VERB
ap-1880	50	32	operations	operation	NOUN
ap-1880	50	33	year	year	NOUN
ap-1880	50	34	-	-	PUNCT
ap-1880	50	35	round	round	NOUN
ap-1880	50	36	,	,	PUNCT
ap-1880	50	37	we	we	PRON
ap-1880	50	38	moved	move	VERB
ap-1880	50	39	the	the	DET
ap-1880	50	40	building	building	NOUN
ap-1880	50	41	and	and	CCONJ
ap-1880	50	42	semi	semi	ADJ
ap-1880	50	43	-	-	NOUN
ap-1880	50	44	trailer	trailer	NOUN
ap-1880	50	45	to	to	ADP
ap-1880	50	46	the	the	DET
ap-1880	50	47	echo	echo	PROPN
ap-1880	50	48	lake	lake	PROPN
ap-1880	50	49	site	site	PROPN
ap-1880	50	50	,	,	PUNCT
ap-1880	50	51	which	which	PRON
ap-1880	50	52	included	include	VERB
ap-1880	50	53	lodgings	lodging	NOUN
ap-1880	50	54	,	,	PUNCT
ap-1880	50	55	and	and	CCONJ
ap-1880	50	56	was	be	AUX
ap-1880	50	57	accessible	accessible	ADJ
ap-1880	50	58	year	year	NOUN
ap-1880	50	59	-	-	PUNCT
ap-1880	50	60	round	round	NOUN
ap-1880	50	61	.	.	PUNCT
ap-1880	51	1	indeed	indeed	ADV
ap-1880	51	2	,	,	PUNCT
ap-1880	51	3	about	about	ADP
ap-1880	51	4	that	that	DET
ap-1880	51	5	time	time	NOUN
ap-1880	51	6	,	,	PUNCT
ap-1880	51	7	c.b.a	c.b.a	NOUN
ap-1880	51	8	.	.	PUNCT
ap-1880	51	9	mccusker	mccusker	NOUN
ap-1880	51	10	in	in	ADP
ap-1880	51	11	australia	australia	PROPN
ap-1880	51	12	reported	report	VERB
ap-1880	51	13	a	a	DET
ap-1880	51	14	positive	positive	ADJ
ap-1880	51	15	result	result	NOUN
ap-1880	51	16	in	in	ADP
ap-1880	51	17	a	a	DET
ap-1880	51	18	quark	quark	NOUN
ap-1880	51	19	search	search	NOUN
ap-1880	51	20	;	;	PUNCT
ap-1880	51	21	a	a	DET
ap-1880	51	22	cloud	cloud	ADJ
ap-1880	51	23	chamber	chamber	NOUN
ap-1880	51	24	track	track	NOUN
ap-1880	51	25	with	with	ADP
ap-1880	51	26	1/3	1/3	NUM
ap-1880	51	27	the	the	DET
ap-1880	51	28	ionization	ionization	NOUN
ap-1880	51	29	of	of	ADP
ap-1880	51	30	a	a	DET
ap-1880	51	31	relativistic	relativistic	ADJ
ap-1880	51	32	muon	muon	NOUN
ap-1880	51	33	.	.	PUNCT
ap-1880	52	1	however	however	ADV
ap-1880	52	2	we	we	PRON
ap-1880	52	3	were	be	AUX
ap-1880	52	4	able	able	ADJ
ap-1880	52	5	to	to	PART
ap-1880	52	6	continue	continue	VERB
ap-1880	52	7	our	our	PRON
ap-1880	52	8	quark	quark	NOUN
ap-1880	52	9	search	search	NOUN
ap-1880	52	10	for	for	ADP
ap-1880	52	11	over	over	ADP
ap-1880	52	12	a	a	PRON
ap-1880	52	13	year	year	NOUN
ap-1880	52	14	,	,	PUNCT
ap-1880	52	15	and	and	CCONJ
ap-1880	52	16	found	find	VERB
ap-1880	52	17	no	no	DET
ap-1880	52	18	quark	quark	NOUN
ap-1880	52	19	candidates	candidate	NOUN
ap-1880	52	20	,	,	PUNCT
ap-1880	52	21	and	and	CCONJ
ap-1880	52	22	hence	hence	ADV
ap-1880	52	23	published	publish	VERB
ap-1880	52	24	a	a	DET
ap-1880	52	25	convincingly	convincingly	ADV
ap-1880	52	26	negative	negative	ADJ
ap-1880	52	27	result	result	NOUN
ap-1880	52	28	[	[	X
ap-1880	52	29	2	2	NUM
ap-1880	52	30	]	]	PUNCT
ap-1880	52	31	.	.	PUNCT
ap-1880	53	1	subsequent	subsequent	ADJ
ap-1880	53	2	searches	search	NOUN
ap-1880	53	3	,	,	PUNCT
ap-1880	53	4	with	with	ADP
ap-1880	53	5	cosmic	cosmic	ADJ
ap-1880	53	6	rays	ray	NOUN
ap-1880	53	7	,	,	PUNCT
ap-1880	53	8	at	at	ADP
ap-1880	53	9	particle	particle	NOUN
ap-1880	53	10	accelerators	accelerator	NOUN
ap-1880	53	11	,	,	PUNCT
ap-1880	53	12	and	and	CCONJ
ap-1880	53	13	in	in	ADP
ap-1880	53	14	stable	stable	ADJ
ap-1880	53	15	matter	matter	NOUN
ap-1880	53	16	,	,	PUNCT
ap-1880	53	17	have	have	AUX
ap-1880	53	18	all	all	ADV
ap-1880	53	19	confirmed	confirm	VERB
ap-1880	53	20	the	the	DET
ap-1880	53	21	absence	absence	NOUN
ap-1880	53	22	of	of	ADP
ap-1880	53	23	free	free	ADJ
ap-1880	53	24	quarks	quark	NOUN
ap-1880	53	25	.	.	PUNCT
ap-1880	54	1	at	at	ADP
ap-1880	54	2	the	the	DET
ap-1880	54	3	1967	1967	NUM
ap-1880	54	4	international	international	ADJ
ap-1880	54	5	cosmic	cosmic	PROPN
ap-1880	54	6	ray	ray	NOUN
ap-1880	54	7	conference	conference	NOUN
ap-1880	54	8	in	in	ADP
ap-1880	54	9	alberta	alberta	PROPN
ap-1880	54	10	,	,	PUNCT
ap-1880	54	11	canada	canada	PROPN
ap-1880	54	12	,	,	PUNCT
ap-1880	54	13	grigorov	grigorov	NOUN
ap-1880	54	14	and	and	CCONJ
ap-1880	54	15	his	his	PRON
ap-1880	54	16	russian	russian	ADJ
ap-1880	54	17	colleagues	colleague	NOUN
ap-1880	54	18	reported	report	VERB
ap-1880	54	19	results	result	NOUN
ap-1880	54	20	from	from	ADP
ap-1880	54	21	the	the	DET
ap-1880	54	22	“	"	PUNCT
ap-1880	54	23	proton	proton	NOUN
ap-1880	54	24	”	"	PUNCT
ap-1880	54	25	russian	russian	ADJ
ap-1880	54	26	satellites	satellite	NOUN
ap-1880	54	27	;	;	PUNCT
ap-1880	54	28	in	in	ADP
ap-1880	54	29	particular	particular	ADJ
ap-1880	54	30	,	,	PUNCT
ap-1880	54	31	the	the	DET
ap-1880	54	32	p	p	X
ap-1880	54	33	–	–	PUNCT
ap-1880	54	34	p	p	X
ap-1880	54	35	inelastic	inelastic	ADJ
ap-1880	54	36	cross	cross	NOUN
ap-1880	54	37	section	section	NOUN
ap-1880	54	38	(	(	PUNCT
ap-1880	54	39	deduced	deduce	VERB
ap-1880	54	40	from	from	ADP
ap-1880	54	41	interactions	interaction	NOUN
ap-1880	54	42	in	in	ADP
ap-1880	54	43	a	a	DET
ap-1880	54	44	graphite	graphite	NOUN
ap-1880	54	45	and	and	CCONJ
ap-1880	54	46	a	a	DET
ap-1880	54	47	polyethylene	polyethylene	NOUN
ap-1880	54	48	target	target	NOUN
ap-1880	54	49	)	)	PUNCT
ap-1880	54	50	was	be	AUX
ap-1880	54	51	reported	report	VERB
ap-1880	54	52	to	to	PART
ap-1880	54	53	be	be	AUX
ap-1880	54	54	about	about	ADV
ap-1880	54	55	22	22	NUM
ap-1880	54	56	%	%	NOUN
ap-1880	54	57	greater	great	ADJ
ap-1880	54	58	at	at	ADP
ap-1880	54	59	about	about	ADP
ap-1880	54	60	500gev	500gev	NUM
ap-1880	54	61	than	than	ADP
ap-1880	54	62	at	at	ADP
ap-1880	54	63	20gev	20gev	NOUN
ap-1880	54	64	[	[	X
ap-1880	54	65	3	3	NUM
ap-1880	54	66	]	]	PUNCT
ap-1880	54	67	.	.	PUNCT
ap-1880	55	1	this	this	PRON
ap-1880	55	2	stimulated	stimulate	VERB
ap-1880	55	3	our	our	PRON
ap-1880	55	4	group	group	NOUN
ap-1880	55	5	to	to	PART
ap-1880	55	6	pursue	pursue	VERB
ap-1880	55	7	the	the	DET
ap-1880	55	8	direct	direct	ADJ
ap-1880	55	9	study	study	NOUN
ap-1880	55	10	of	of	ADP
ap-1880	55	11	p	p	X
ap-1880	55	12	–	–	PUNCT
ap-1880	55	13	p	p	NOUN
ap-1880	55	14	interactions	interaction	NOUN
ap-1880	55	15	at	at	ADP
ap-1880	55	16	echo	echo	NOUN
ap-1880	55	17	lake	lake	PROPN
ap-1880	55	18	,	,	PUNCT
ap-1880	55	19	where	where	SCONJ
ap-1880	55	20	we	we	PRON
ap-1880	55	21	had	have	AUX
ap-1880	55	22	begun	begin	VERB
ap-1880	55	23	to	to	PART
ap-1880	55	24	build	build	VERB
ap-1880	55	25	a	a	DET
ap-1880	55	26	larger	large	ADJ
ap-1880	55	27	detector	detector	NOUN
ap-1880	55	28	.	.	PUNCT
ap-1880	56	1	bruce	bruce	PROPN
ap-1880	56	2	cork	cork	NOUN
ap-1880	56	3	(	(	PUNCT
ap-1880	56	4	from	from	ADP
ap-1880	56	5	berkeley	berkeley	PROPN
ap-1880	56	6	)	)	PUNCT
ap-1880	56	7	arranged	arrange	VERB
ap-1880	56	8	for	for	ADP
ap-1880	56	9	a	a	DET
ap-1880	56	10	2000	2000	NUM
ap-1880	56	11	liter	liter	NOUN
ap-1880	56	12	liquid	liquid	ADJ
ap-1880	56	13	hydrogen	hydrogen	NOUN
ap-1880	56	14	target	target	NOUN
ap-1880	56	15	to	to	PART
ap-1880	56	16	be	be	AUX
ap-1880	56	17	built	build	VERB
ap-1880	56	18	for	for	ADP
ap-1880	56	19	incorporation	incorporation	NOUN
ap-1880	56	20	into	into	ADP
ap-1880	56	21	our	our	PRON
ap-1880	56	22	detector	detector	NOUN
ap-1880	56	23	,	,	PUNCT
ap-1880	56	24	which	which	PRON
ap-1880	56	25	was	be	AUX
ap-1880	56	26	built	build	VERB
ap-1880	56	27	in	in	ADP
ap-1880	56	28	a	a	DET
ap-1880	56	29	new	new	ADJ
ap-1880	56	30	,	,	PUNCT
ap-1880	56	31	larger	large	ADJ
ap-1880	56	32	wooden	wooden	ADJ
ap-1880	56	33	building	building	NOUN
ap-1880	56	34	.	.	PUNCT
ap-1880	57	1	the	the	DET
ap-1880	57	2	detector	detector	NOUN
ap-1880	57	3	complex	complex	NOUN
ap-1880	57	4	was	be	AUX
ap-1880	57	5	about	about	ADV
ap-1880	57	6	4.5	4.5	NUM
ap-1880	57	7	m	m	NOUN
ap-1880	57	8	tall	tall	ADJ
ap-1880	57	9	,	,	PUNCT
ap-1880	57	10	and	and	CCONJ
ap-1880	57	11	consisted	consist	VERB
ap-1880	57	12	of	of	ADP
ap-1880	57	13	a	a	DET
ap-1880	57	14	top	top	ADJ
ap-1880	57	15	scintillation	scintillation	NOUN
ap-1880	57	16	counter	counter	NOUN
ap-1880	57	17	,	,	PUNCT
ap-1880	57	18	a	a	DET
ap-1880	57	19	spark	spark	NOUN
ap-1880	57	20	chamber	chamber	NOUN
ap-1880	57	21	2	2	NUM
ap-1880	57	22	×	×	NOUN
ap-1880	57	23	2	2	NUM
ap-1880	57	24	meters	meter	NOUN
ap-1880	57	25	,	,	PUNCT
ap-1880	57	26	consisting	consist	VERB
ap-1880	57	27	of	of	ADP
ap-1880	57	28	two	two	NUM
ap-1880	57	29	20	20	NUM
ap-1880	57	30	cm	cm	NOUN
ap-1880	57	31	gaps	gap	NOUN
ap-1880	57	32	,	,	PUNCT
ap-1880	57	33	the	the	DET
ap-1880	57	34	liquid	liquid	ADJ
ap-1880	57	35	hydrogen	hydrogen	NOUN
ap-1880	57	36	target	target	NOUN
ap-1880	57	37	,	,	PUNCT
ap-1880	57	38	and	and	CCONJ
ap-1880	57	39	another	another	DET
ap-1880	57	40	2	2	NUM
ap-1880	57	41	gap	gap	NOUN
ap-1880	57	42	2	2	NUM
ap-1880	57	43	×	×	NOUN
ap-1880	57	44	2	2	NUM
ap-1880	57	45	meter	meter	NOUN
ap-1880	57	46	spark	spark	NOUN
ap-1880	57	47	chamber	chamber	PROPN
ap-1880	57	48	.	.	PUNCT
ap-1880	58	1	below	below	ADP
ap-1880	58	2	this	this	PRON
ap-1880	58	3	was	be	AUX
ap-1880	58	4	a	a	DET
ap-1880	58	5	set	set	NOUN
ap-1880	58	6	of	of	ADP
ap-1880	58	7	three	three	NUM
ap-1880	58	8	multigap	multigap	NOUN
ap-1880	58	9	thin	thin	ADJ
ap-1880	58	10	plate	plate	NOUN
ap-1880	58	11	spark	spark	NOUN
ap-1880	58	12	chambers	chamber	NOUN
ap-1880	58	13	(	(	PUNCT
ap-1880	58	14	10	10	NUM
ap-1880	58	15	gaps	gap	NOUN
ap-1880	58	16	total	total	NOUN
ap-1880	58	17	)	)	PUNCT
ap-1880	58	18	separated	separate	VERB
ap-1880	58	19	by	by	ADP
ap-1880	58	20	iron	iron	NOUN
ap-1880	58	21	plates	plate	NOUN
ap-1880	58	22	and	and	CCONJ
ap-1880	58	23	scintillators	scintillator	NOUN
ap-1880	58	24	(	(	PUNCT
ap-1880	58	25	for	for	ADP
ap-1880	58	26	observing	observe	VERB
ap-1880	58	27	em	em	PRON
ap-1880	58	28	showers	shower	NOUN
ap-1880	58	29	and	and	CCONJ
ap-1880	58	30	nuclear	nuclear	ADJ
ap-1880	58	31	interactions	interaction	NOUN
ap-1880	58	32	)	)	PUNCT
ap-1880	58	33	,	,	PUNCT
ap-1880	58	34	and	and	CCONJ
ap-1880	58	35	below	below	ADP
ap-1880	58	36	this	this	PRON
ap-1880	58	37	a	a	DET
ap-1880	58	38	large	large	ADJ
ap-1880	58	39	total	total	ADJ
ap-1880	58	40	absorption	absorption	NOUN
ap-1880	58	41	calorimeter	calorimeter	NOUN
ap-1880	58	42	,	,	PUNCT
ap-1880	58	43	with	with	ADP
ap-1880	58	44	10	10	NUM
ap-1880	58	45	layers	layer	NOUN
ap-1880	58	46	of	of	ADP
ap-1880	58	47	counters	counter	NOUN
ap-1880	58	48	between	between	ADP
ap-1880	58	49	iron	iron	NOUN
ap-1880	58	50	plates	plate	NOUN
ap-1880	58	51	,	,	PUNCT
ap-1880	58	52	which	which	PRON
ap-1880	58	53	together	together	ADV
ap-1880	58	54	totaled	total	VERB
ap-1880	58	55	1130	1130	NUM
ap-1880	58	56	g	g	NOUN
ap-1880	58	57	/	/	SYM
ap-1880	58	58	cm2	cm2	NOUN
ap-1880	58	59	.	.	PUNCT
ap-1880	59	1	an	an	DET
ap-1880	59	2	array	array	NOUN
ap-1880	59	3	of	of	ADP
ap-1880	59	4	scintillation	scintillation	NOUN
ap-1880	59	5	counters	counter	NOUN
ap-1880	59	6	around	around	ADP
ap-1880	59	7	the	the	DET
ap-1880	59	8	mid	mid	NOUN
ap-1880	59	9	-	-	NOUN
ap-1880	59	10	plane	plane	NOUN
ap-1880	59	11	of	of	ADP
ap-1880	59	12	the	the	DET
ap-1880	59	13	498	498	NUM
ap-1880	59	14	vol	vol	NOUN
ap-1880	59	15	.	.	PUNCT
ap-1880	60	1	53	53	NUM
ap-1880	60	2	supplement/2013	supplement/2013	VERB
ap-1880	60	3	the	the	DET
ap-1880	60	4	first	first	ADJ
ap-1880	60	5	century	century	NOUN
ap-1880	60	6	of	of	ADP
ap-1880	60	7	cosmic	cosmic	ADJ
ap-1880	60	8	rays	ray	NOUN
ap-1880	60	9	,	,	PUNCT
ap-1880	60	10	an	an	DET
ap-1880	60	11	historical	historical	ADJ
ap-1880	60	12	overview	overview	NOUN
ap-1880	60	13	hydrogen	hydrogen	NOUN
ap-1880	60	14	target	target	NOUN
ap-1880	60	15	served	serve	VERB
ap-1880	60	16	as	as	ADP
ap-1880	60	17	a	a	DET
ap-1880	60	18	veto	veto	NOUN
ap-1880	60	19	to	to	PART
ap-1880	60	20	restrict	restrict	VERB
ap-1880	60	21	triggered	trigger	VERB
ap-1880	60	22	events	event	NOUN
ap-1880	60	23	to	to	ADP
ap-1880	60	24	unaccompanied	unaccompanied	ADJ
ap-1880	60	25	incident	incident	NOUN
ap-1880	60	26	cosmic	cosmic	ADJ
ap-1880	60	27	ray	ray	NOUN
ap-1880	60	28	particles	particle	NOUN
ap-1880	60	29	(	(	PUNCT
ap-1880	60	30	virtually	virtually	ADV
ap-1880	60	31	all	all	PRON
ap-1880	60	32	protons	proton	NOUN
ap-1880	60	33	)	)	PUNCT
ap-1880	60	34	.	.	PUNCT
ap-1880	61	1	the	the	DET
ap-1880	61	2	resulting	result	VERB
ap-1880	61	3	data	datum	NOUN
ap-1880	61	4	,	,	PUNCT
ap-1880	61	5	90	90	NUM
ap-1880	61	6	°	°	NUM
ap-1880	61	7	stereophotographs	stereophotograph	NOUN
ap-1880	61	8	and	and	CCONJ
ap-1880	61	9	digital	digital	ADJ
ap-1880	61	10	data	datum	NOUN
ap-1880	61	11	of	of	ADP
ap-1880	61	12	the	the	DET
ap-1880	61	13	recorded	record	VERB
ap-1880	61	14	events	event	NOUN
ap-1880	61	15	,	,	PUNCT
ap-1880	61	16	were	be	AUX
ap-1880	61	17	analyzed	analyze	VERB
ap-1880	61	18	at	at	ADP
ap-1880	61	19	our	our	PRON
ap-1880	61	20	home	home	NOUN
ap-1880	61	21	institutions	institution	NOUN
ap-1880	61	22	just	just	ADV
ap-1880	61	23	as	as	SCONJ
ap-1880	61	24	spark	spark	NOUN
ap-1880	61	25	chamber	chamber	NOUN
ap-1880	61	26	and	and	CCONJ
ap-1880	61	27	bubble	bubble	NOUN
ap-1880	61	28	chamber	chamber	PROPN
ap-1880	61	29	data	datum	NOUN
ap-1880	61	30	from	from	ADP
ap-1880	61	31	accelerators	accelerator	NOUN
ap-1880	61	32	were	be	AUX
ap-1880	61	33	being	be	AUX
ap-1880	61	34	analyzed	analyze	VERB
ap-1880	61	35	.	.	PUNCT
ap-1880	62	1	from	from	ADP
ap-1880	62	2	our	our	PRON
ap-1880	62	3	data	datum	NOUN
ap-1880	62	4	,	,	PUNCT
ap-1880	62	5	we	we	PRON
ap-1880	62	6	confirmed	confirm	VERB
ap-1880	62	7	that	that	SCONJ
ap-1880	62	8	the	the	DET
ap-1880	62	9	p	p	X
ap-1880	62	10	–	–	PUNCT
ap-1880	62	11	p	p	PROPN
ap-1880	62	12	inelastic	inelastic	ADJ
ap-1880	62	13	cross	cross	NOUN
ap-1880	62	14	section	section	NOUN
ap-1880	62	15	was	be	AUX
ap-1880	62	16	essentially	essentially	ADV
ap-1880	62	17	constant	constant	ADJ
ap-1880	62	18	between	between	ADP
ap-1880	62	19	20gev	20gev	NOUN
ap-1880	62	20	(	(	PUNCT
ap-1880	62	21	as	as	SCONJ
ap-1880	62	22	measured	measure	VERB
ap-1880	62	23	at	at	ADP
ap-1880	62	24	the	the	DET
ap-1880	62	25	brookhaven	brookhaven	NOUN
ap-1880	62	26	and	and	CCONJ
ap-1880	62	27	cern	cern	ADJ
ap-1880	62	28	accelerators	accelerator	NOUN
ap-1880	62	29	)	)	PUNCT
ap-1880	62	30	and	and	CCONJ
ap-1880	62	31	∼	∼	NOUN
ap-1880	62	32	500gev	500gev	NUM
ap-1880	62	33	,	,	PUNCT
ap-1880	62	34	proving	prove	VERB
ap-1880	62	35	the	the	DET
ap-1880	62	36	russians	russians	PROPN
ap-1880	62	37	wrong	wrong	ADJ
ap-1880	62	38	[	[	X
ap-1880	62	39	4	4	NUM
ap-1880	62	40	]	]	PUNCT
ap-1880	62	41	.	.	PUNCT
ap-1880	63	1	we	we	PRON
ap-1880	63	2	continued	continue	VERB
ap-1880	63	3	with	with	ADP
ap-1880	63	4	other	other	ADJ
ap-1880	63	5	data	data	NOUN
ap-1880	63	6	collection	collection	NOUN
ap-1880	63	7	;	;	PUNCT
ap-1880	63	8	secondary	secondary	ADJ
ap-1880	63	9	particle	particle	NOUN
ap-1880	63	10	multiplicity	multiplicity	NOUN
ap-1880	63	11	and	and	CCONJ
ap-1880	63	12	angular	angular	ADJ
ap-1880	63	13	distributions	distribution	NOUN
ap-1880	63	14	,	,	PUNCT
ap-1880	63	15	p	p	X
ap-1880	63	16	–	–	PUNCT
ap-1880	63	17	nuclear	nuclear	ADJ
ap-1880	63	18	cross	cross	NOUN
ap-1880	63	19	sections	section	NOUN
ap-1880	63	20	with	with	ADP
ap-1880	63	21	targets	target	NOUN
ap-1880	63	22	of	of	ADP
ap-1880	63	23	carbon	carbon	NOUN
ap-1880	63	24	,	,	PUNCT
ap-1880	63	25	iron	iron	NOUN
ap-1880	63	26	,	,	PUNCT
ap-1880	63	27	and	and	CCONJ
ap-1880	63	28	lead	lead	NOUN
ap-1880	63	29	,	,	PUNCT
ap-1880	63	30	and	and	CCONJ
ap-1880	63	31	other	other	ADJ
ap-1880	63	32	studies	study	NOUN
ap-1880	63	33	.	.	PUNCT
ap-1880	64	1	gaurang	gaurang	PROPN
ap-1880	64	2	yodh	yodh	PROPN
ap-1880	64	3	later	later	ADV
ap-1880	64	4	found	find	VERB
ap-1880	64	5	that	that	SCONJ
ap-1880	64	6	the	the	DET
ap-1880	64	7	russian	russian	ADJ
ap-1880	64	8	result	result	NOUN
ap-1880	64	9	was	be	AUX
ap-1880	64	10	the	the	DET
ap-1880	64	11	result	result	NOUN
ap-1880	64	12	of	of	ADP
ap-1880	64	13	back	back	ADJ
ap-1880	64	14	scattering	scattering	NOUN
ap-1880	64	15	of	of	ADP
ap-1880	64	16	reaction	reaction	NOUN
ap-1880	64	17	products	product	NOUN
ap-1880	64	18	in	in	ADP
ap-1880	64	19	their	their	PRON
ap-1880	64	20	calorimeter	calorimeter	NOUN
ap-1880	64	21	below	below	ADP
ap-1880	64	22	their	their	PRON
ap-1880	64	23	target	target	NOUN
ap-1880	64	24	.	.	PUNCT
ap-1880	65	1	of	of	ADP
ap-1880	65	2	course	course	NOUN
ap-1880	65	3	,	,	PUNCT
ap-1880	65	4	we	we	PRON
ap-1880	65	5	now	now	ADV
ap-1880	65	6	know	know	VERB
ap-1880	65	7	,	,	PUNCT
ap-1880	65	8	from	from	ADP
ap-1880	65	9	the	the	DET
ap-1880	65	10	totem	totem	PROPN
ap-1880	65	11	lhc	lhc	PROPN
ap-1880	65	12	data	data	PROPN
ap-1880	65	13	,	,	PUNCT
ap-1880	65	14	that	that	SCONJ
ap-1880	65	15	the	the	DET
ap-1880	65	16	p	p	X
ap-1880	65	17	–	–	PUNCT
ap-1880	65	18	p	p	NOUN
ap-1880	65	19	cross	cross	NOUN
ap-1880	65	20	section	section	NOUN
ap-1880	65	21	rises	rise	VERB
ap-1880	65	22	to	to	ADP
ap-1880	65	23	about	about	ADP
ap-1880	65	24	100	100	NUM
ap-1880	65	25	mb	mb	NOUN
ap-1880	65	26	at	at	ADP
ap-1880	65	27	7tev	7tev	PROPN
ap-1880	65	28	c.m	c.m	NOUN
ap-1880	65	29	.	.	PUNCT
ap-1880	66	1	(	(	PUNCT
ap-1880	66	2	about	about	ADP
ap-1880	66	3	25pev	25pev	NOUN
ap-1880	66	4	equivalent	equivalent	ADJ
ap-1880	66	5	cosmic	cosmic	ADJ
ap-1880	66	6	ray	ray	NOUN
ap-1880	66	7	energy	energy	NOUN
ap-1880	66	8	)	)	PUNCT
ap-1880	66	9	;	;	PUNCT
ap-1880	66	10	although	although	SCONJ
ap-1880	66	11	our	our	PRON
ap-1880	66	12	echo	echo	NOUN
ap-1880	66	13	lake	lake	NOUN
ap-1880	66	14	measurements	measurement	NOUN
ap-1880	66	15	(	(	PUNCT
ap-1880	66	16	below	below	ADP
ap-1880	66	17	a	a	DET
ap-1880	66	18	tev	tev	NOUN
ap-1880	66	19	)	)	PUNCT
ap-1880	66	20	were	be	AUX
ap-1880	66	21	confirmed	confirm	VERB
ap-1880	66	22	by	by	ADP
ap-1880	66	23	accelerator	accelerator	NOUN
ap-1880	66	24	data	datum	NOUN
ap-1880	66	25	.	.	PUNCT
ap-1880	67	1	of	of	ADP
ap-1880	67	2	course	course	NOUN
ap-1880	67	3	,	,	PUNCT
ap-1880	67	4	in	in	ADP
ap-1880	67	5	the	the	DET
ap-1880	67	6	late	late	ADJ
ap-1880	67	7	1960s	1960	NOUN
ap-1880	67	8	,	,	PUNCT
ap-1880	67	9	the	the	DET
ap-1880	67	10	fermi	fermi	NOUN
ap-1880	67	11	national	national	PROPN
ap-1880	67	12	accelerator	accelerator	PROPN
ap-1880	67	13	laboratory	laboratory	PROPN
ap-1880	67	14	,	,	PUNCT
ap-1880	67	15	managed	manage	VERB
ap-1880	67	16	by	by	ADP
ap-1880	67	17	the	the	DET
ap-1880	67	18	newly	newly	ADV
ap-1880	67	19	-	-	PUNCT
ap-1880	67	20	formed	form	VERB
ap-1880	67	21	universities	university	NOUN
ap-1880	67	22	research	research	PROPN
ap-1880	67	23	association	association	PROPN
ap-1880	67	24	(	(	PUNCT
ap-1880	67	25	representing	represent	VERB
ap-1880	67	26	major	major	ADJ
ap-1880	67	27	universities	university	NOUN
ap-1880	67	28	from	from	ADP
ap-1880	67	29	all	all	ADV
ap-1880	67	30	across	across	ADP
ap-1880	67	31	the	the	DET
ap-1880	67	32	u.s	u.s	PROPN
ap-1880	67	33	.	.	PROPN
ap-1880	67	34	)	)	PUNCT
ap-1880	67	35	was	be	AUX
ap-1880	67	36	established	establish	VERB
ap-1880	67	37	near	near	ADP
ap-1880	67	38	chicago	chicago	PROPN
ap-1880	67	39	,	,	PUNCT
ap-1880	67	40	where	where	SCONJ
ap-1880	67	41	it	it	PRON
ap-1880	67	42	began	begin	VERB
ap-1880	67	43	construction	construction	NOUN
ap-1880	67	44	of	of	ADP
ap-1880	67	45	the	the	DET
ap-1880	67	46	300gev	300gev	NUM
ap-1880	67	47	synchrotron	synchrotron	NOUN
ap-1880	67	48	.	.	PUNCT
ap-1880	68	1	and	and	CCONJ
ap-1880	68	2	in	in	ADP
ap-1880	68	3	europe	europe	PROPN
ap-1880	68	4	,	,	PUNCT
ap-1880	68	5	cern	cern	PROPN
ap-1880	68	6	expanded	expand	VERB
ap-1880	68	7	its	its	PRON
ap-1880	68	8	site	site	NOUN
ap-1880	68	9	and	and	CCONJ
ap-1880	68	10	undertook	undertake	VERB
ap-1880	68	11	to	to	PART
ap-1880	68	12	build	build	VERB
ap-1880	68	13	the	the	DET
ap-1880	68	14	sps	sps	NOUN
ap-1880	68	15	(	(	PUNCT
ap-1880	68	16	super	super	ADJ
ap-1880	68	17	proton	proton	NOUN
ap-1880	68	18	synchrotron	synchrotron	NOUN
ap-1880	68	19	)	)	PUNCT
ap-1880	68	20	.	.	PUNCT
ap-1880	69	1	in	in	ADP
ap-1880	69	2	1972	1972	NUM
ap-1880	69	3	the	the	DET
ap-1880	69	4	fermilab	fermilab	PROPN
ap-1880	69	5	synchrotron	synchrotron	NOUN
ap-1880	69	6	commenced	commence	VERB
ap-1880	69	7	operation	operation	NOUN
ap-1880	69	8	,	,	PUNCT
ap-1880	69	9	and	and	CCONJ
ap-1880	69	10	we	we	PRON
ap-1880	69	11	closed	close	VERB
ap-1880	69	12	the	the	DET
ap-1880	69	13	cosmic	cosmic	ADJ
ap-1880	69	14	ray	ray	NOUN
ap-1880	69	15	program	program	NOUN
ap-1880	69	16	and	and	CCONJ
ap-1880	69	17	moved	move	VERB
ap-1880	69	18	our	our	PRON
ap-1880	69	19	activities	activity	NOUN
ap-1880	69	20	to	to	ADP
ap-1880	69	21	accelerators	accelerator	NOUN
ap-1880	69	22	.	.	PUNCT
ap-1880	70	1	5	5	X
ap-1880	70	2	.	.	X
ap-1880	70	3	recent	recent	ADJ
ap-1880	70	4	cosmic	cosmic	ADJ
ap-1880	70	5	ray	ray	NOUN
ap-1880	70	6	research	research	NOUN
ap-1880	70	7	for	for	ADP
ap-1880	70	8	the	the	DET
ap-1880	70	9	past	past	ADJ
ap-1880	70	10	40	40	NUM
ap-1880	70	11	years	year	NOUN
ap-1880	70	12	,	,	PUNCT
ap-1880	70	13	the	the	DET
ap-1880	70	14	major	major	ADJ
ap-1880	70	15	emphasis	emphasis	NOUN
ap-1880	70	16	of	of	ADP
ap-1880	70	17	cosmic	cosmic	ADJ
ap-1880	70	18	ray	ray	NOUN
ap-1880	70	19	research	research	NOUN
ap-1880	70	20	has	have	AUX
ap-1880	70	21	been	be	AUX
ap-1880	70	22	directed	direct	VERB
ap-1880	70	23	towards	towards	ADP
ap-1880	70	24	questions	question	NOUN
ap-1880	70	25	in	in	ADP
ap-1880	70	26	astrophysics	astrophysic	NOUN
ap-1880	70	27	and	and	CCONJ
ap-1880	70	28	cosmology	cosmology	NOUN
ap-1880	70	29	;	;	PUNCT
ap-1880	70	30	for	for	ADP
ap-1880	70	31	example	example	NOUN
ap-1880	70	32	,	,	PUNCT
ap-1880	70	33	studies	study	NOUN
ap-1880	70	34	of	of	ADP
ap-1880	70	35	the	the	DET
ap-1880	70	36	primary	primary	ADJ
ap-1880	70	37	spectrum	spectrum	NOUN
ap-1880	70	38	and	and	CCONJ
ap-1880	70	39	composition	composition	NOUN
ap-1880	70	40	with	with	ADP
ap-1880	70	41	balloon	balloon	NOUN
ap-1880	70	42	and	and	CCONJ
ap-1880	70	43	satellite	satellite	NOUN
ap-1880	70	44	-	-	PUNCT
ap-1880	70	45	borne	bear	VERB
ap-1880	70	46	detectors	detector	NOUN
ap-1880	70	47	for	for	ADP
ap-1880	70	48	studies	study	NOUN
ap-1880	70	49	up	up	ADP
ap-1880	70	50	to	to	AUX
ap-1880	70	51	tev	tev	VERB
ap-1880	70	52	energies	energy	NOUN
ap-1880	70	53	,	,	PUNCT
ap-1880	70	54	and	and	CCONJ
ap-1880	70	55	surface	surface	NOUN
ap-1880	70	56	air	air	NOUN
ap-1880	70	57	shower	shower	NOUN
ap-1880	70	58	arrays	array	VERB
ap-1880	70	59	,	,	PUNCT
ap-1880	70	60	especially	especially	ADV
ap-1880	70	61	the	the	DET
ap-1880	70	62	auger	auger	NOUN
ap-1880	70	63	and	and	CCONJ
ap-1880	70	64	the	the	DET
ap-1880	70	65	telescope	telescope	NOUN
ap-1880	70	66	array	array	NOUN
ap-1880	70	67	.	.	PUNCT
ap-1880	71	1	also	also	ADV
ap-1880	71	2	,	,	PUNCT
ap-1880	71	3	studies	study	NOUN
ap-1880	71	4	of	of	ADP
ap-1880	71	5	x	x	NOUN
ap-1880	71	6	-	-	NOUN
ap-1880	71	7	rays	ray	NOUN
ap-1880	71	8	,	,	PUNCT
ap-1880	71	9	gamma	gamma	NOUN
ap-1880	71	10	rays	ray	NOUN
ap-1880	71	11	,	,	PUNCT
ap-1880	71	12	gamma	gamma	PROPN
ap-1880	71	13	ray	ray	NOUN
ap-1880	71	14	bursts	burst	NOUN
ap-1880	71	15	,	,	PUNCT
ap-1880	71	16	etc	etc	X
ap-1880	71	17	.	.	X
ap-1880	71	18	neutrino	neutrino	NOUN
ap-1880	71	19	astronomy	astronomy	NOUN
ap-1880	71	20	is	be	AUX
ap-1880	71	21	a	a	DET
ap-1880	71	22	current	current	ADJ
ap-1880	71	23	lively	lively	ADJ
ap-1880	71	24	topic	topic	NOUN
ap-1880	71	25	,	,	PUNCT
ap-1880	71	26	with	with	SCONJ
ap-1880	71	27	detector	detector	NOUN
ap-1880	71	28	arrays	array	VERB
ap-1880	71	29	on	on	ADP
ap-1880	71	30	the	the	DET
ap-1880	71	31	kilometer	kilometer	NOUN
ap-1880	71	32	scale	scale	NOUN
ap-1880	71	33	,	,	PUNCT
ap-1880	71	34	and	and	CCONJ
ap-1880	71	35	the	the	DET
ap-1880	71	36	strange	strange	ADJ
ap-1880	71	37	taxonomy	taxonomy	NOUN
ap-1880	71	38	of	of	ADP
ap-1880	71	39	neutrons	neutron	NOUN
ap-1880	71	40	;	;	PUNCT
ap-1880	71	41	three	three	NUM
ap-1880	71	42	“	"	PUNCT
ap-1880	71	43	flavors	flavor	NOUN
ap-1880	71	44	”	"	PUNCT
ap-1880	71	45	(	(	PUNCT
ap-1880	71	46	corresponding	correspond	VERB
ap-1880	71	47	to	to	ADP
ap-1880	71	48	the	the	DET
ap-1880	71	49	electron	electron	NOUN
ap-1880	71	50	,	,	PUNCT
ap-1880	71	51	muon	muon	NOUN
ap-1880	71	52	,	,	PUNCT
ap-1880	71	53	and	and	CCONJ
ap-1880	71	54	tau	tau	PROPN
ap-1880	71	55	)	)	PUNCT
ap-1880	71	56	,	,	PUNCT
ap-1880	71	57	and	and	CCONJ
ap-1880	71	58	three	three	NUM
ap-1880	71	59	different	different	ADJ
ap-1880	71	60	mass	mass	NOUN
ap-1880	71	61	eigen	eigen	PROPN
ap-1880	71	62	states	state	NOUN
ap-1880	71	63	.	.	PUNCT
ap-1880	72	1	there	there	PRON
ap-1880	72	2	are	be	VERB
ap-1880	72	3	extensive	extensive	ADJ
ap-1880	72	4	presentations	presentation	NOUN
ap-1880	72	5	of	of	ADP
ap-1880	72	6	these	these	DET
ap-1880	72	7	topics	topic	NOUN
ap-1880	72	8	at	at	ADP
ap-1880	72	9	this	this	DET
ap-1880	72	10	workshop	workshop	NOUN
ap-1880	72	11	,	,	PUNCT
ap-1880	72	12	so	so	SCONJ
ap-1880	72	13	they	they	PRON
ap-1880	72	14	will	will	AUX
ap-1880	72	15	not	not	PART
ap-1880	72	16	be	be	AUX
ap-1880	72	17	discussed	discuss	VERB
ap-1880	72	18	here	here	ADV
ap-1880	72	19	.	.	PUNCT
ap-1880	73	1	many	many	ADJ
ap-1880	73	2	other	other	ADJ
ap-1880	73	3	recent	recent	ADJ
ap-1880	73	4	and	and	CCONJ
ap-1880	73	5	current	current	ADJ
ap-1880	73	6	cosmic	cosmic	ADJ
ap-1880	73	7	ray	ray	NOUN
ap-1880	73	8	research	research	NOUN
ap-1880	73	9	activities	activity	NOUN
ap-1880	73	10	are	be	AUX
ap-1880	73	11	also	also	ADV
ap-1880	73	12	addressed	address	VERB
ap-1880	73	13	here	here	ADV
ap-1880	73	14	,	,	PUNCT
ap-1880	73	15	including	include	VERB
ap-1880	73	16	the	the	DET
ap-1880	73	17	most	most	ADV
ap-1880	73	18	recent	recent	ADJ
ap-1880	73	19	results	result	NOUN
ap-1880	73	20	from	from	ADP
ap-1880	73	21	the	the	DET
ap-1880	73	22	pamela	pamela	PROPN
ap-1880	73	23	and	and	CCONJ
ap-1880	73	24	other	other	ADJ
ap-1880	73	25	satellite	satellite	NOUN
ap-1880	73	26	detectors	detector	NOUN
ap-1880	73	27	.	.	PUNCT
ap-1880	74	1	we	we	PRON
ap-1880	74	2	look	look	VERB
ap-1880	74	3	forward	forward	ADV
ap-1880	74	4	to	to	ADP
ap-1880	74	5	future	future	ADJ
ap-1880	74	6	reports	report	NOUN
ap-1880	74	7	of	of	ADP
ap-1880	74	8	results	result	NOUN
ap-1880	74	9	from	from	ADP
ap-1880	74	10	the	the	DET
ap-1880	74	11	ams-02	ams-02	ADP
ap-1880	74	12	magnetic	magnetic	ADJ
ap-1880	74	13	spectrometer	spectrometer	NOUN
ap-1880	74	14	,	,	PUNCT
ap-1880	74	15	aboard	aboard	ADP
ap-1880	74	16	the	the	DET
ap-1880	74	17	international	international	ADJ
ap-1880	74	18	space	space	NOUN
ap-1880	74	19	station	station	NOUN
ap-1880	74	20	.	.	PUNCT
ap-1880	75	1	an	an	DET
ap-1880	75	2	area	area	NOUN
ap-1880	75	3	of	of	ADP
ap-1880	75	4	particle	particle	NOUN
ap-1880	75	5	physics	physics	PROPN
ap-1880	75	6	/	/	SYM
ap-1880	75	7	cosmic	cosmic	PROPN
ap-1880	75	8	ray	ray	NOUN
ap-1880	75	9	research	research	NOUN
ap-1880	75	10	which	which	PRON
ap-1880	75	11	is	be	AUX
ap-1880	75	12	still	still	ADV
ap-1880	75	13	active	active	ADJ
ap-1880	75	14	is	be	AUX
ap-1880	75	15	the	the	DET
ap-1880	75	16	use	use	NOUN
ap-1880	75	17	of	of	ADP
ap-1880	75	18	emulsion	emulsion	NOUN
ap-1880	75	19	chambers	chamber	NOUN
ap-1880	75	20	.	.	PUNCT
ap-1880	76	1	these	these	PRON
ap-1880	76	2	are	be	AUX
ap-1880	76	3	stacks	stack	NOUN
ap-1880	76	4	of	of	ADP
ap-1880	76	5	nuclear	nuclear	ADJ
ap-1880	76	6	emulsions	emulsion	NOUN
ap-1880	76	7	and/or	and/or	CCONJ
ap-1880	76	8	x	x	NOUN
ap-1880	76	9	-	-	NOUN
ap-1880	76	10	ray	ray	NOUN
ap-1880	76	11	film	film	NOUN
ap-1880	76	12	,	,	PUNCT
ap-1880	76	13	separated	separate	VERB
ap-1880	76	14	by	by	ADP
ap-1880	76	15	sheets	sheet	NOUN
ap-1880	76	16	of	of	ADP
ap-1880	76	17	metal	metal	NOUN
ap-1880	76	18	(	(	PUNCT
ap-1880	76	19	or	or	CCONJ
ap-1880	76	20	,	,	PUNCT
ap-1880	76	21	sometimes	sometimes	ADV
ap-1880	76	22	,	,	PUNCT
ap-1880	76	23	graphite	graphite	NOUN
ap-1880	76	24	)	)	PUNCT
ap-1880	76	25	in	in	ADP
ap-1880	76	26	which	which	PRON
ap-1880	76	27	the	the	DET
ap-1880	76	28	tracks	track	NOUN
ap-1880	76	29	of	of	ADP
ap-1880	76	30	particles	particle	NOUN
ap-1880	76	31	from	from	ADP
ap-1880	76	32	cosmic	cosmic	ADJ
ap-1880	76	33	ray	ray	NOUN
ap-1880	76	34	interactions	interaction	NOUN
ap-1880	76	35	may	may	AUX
ap-1880	76	36	be	be	AUX
ap-1880	76	37	observed	observe	VERB
ap-1880	76	38	and	and	CCONJ
ap-1880	76	39	studied	study	VERB
ap-1880	76	40	.	.	PUNCT
ap-1880	77	1	most	most	ADJ
ap-1880	77	2	of	of	ADP
ap-1880	77	3	this	this	DET
ap-1880	77	4	activity	activity	NOUN
ap-1880	77	5	is	be	AUX
ap-1880	77	6	currently	currently	ADV
ap-1880	77	7	carried	carry	VERB
ap-1880	77	8	out	out	ADP
ap-1880	77	9	by	by	ADP
ap-1880	77	10	russian	russian	ADJ
ap-1880	77	11	,	,	PUNCT
ap-1880	77	12	japanese	japanese	PROPN
ap-1880	77	13	,	,	PUNCT
ap-1880	77	14	and	and	CCONJ
ap-1880	77	15	brazilian	brazilian	ADJ
ap-1880	77	16	physicists	physicist	NOUN
ap-1880	77	17	,	,	PUNCT
ap-1880	77	18	with	with	SCONJ
ap-1880	77	19	emulsion	emulsion	NOUN
ap-1880	77	20	chamber	chamber	NOUN
ap-1880	77	21	arrays	array	VERB
ap-1880	77	22	on	on	ADP
ap-1880	77	23	mountains	mountain	NOUN
ap-1880	77	24	in	in	ADP
ap-1880	77	25	kazakhstan	kazakhstan	PROPN
ap-1880	77	26	,	,	PUNCT
ap-1880	77	27	bolivia	bolivia	PROPN
ap-1880	77	28	,	,	PUNCT
ap-1880	77	29	and	and	CCONJ
ap-1880	77	30	tibet	tibet	PROPN
ap-1880	77	31	.	.	PUNCT
ap-1880	78	1	a	a	DET
ap-1880	78	2	recent	recent	ADJ
ap-1880	78	3	interesting	interesting	ADJ
ap-1880	78	4	workshop	workshop	NOUN
ap-1880	78	5	,	,	PUNCT
ap-1880	78	6	where	where	SCONJ
ap-1880	78	7	the	the	DET
ap-1880	78	8	latest	late	ADJ
ap-1880	78	9	results	result	NOUN
ap-1880	78	10	were	be	AUX
ap-1880	78	11	reported	report	VERB
ap-1880	78	12	,	,	PUNCT
ap-1880	78	13	was	be	AUX
ap-1880	78	14	held	hold	VERB
ap-1880	78	15	in	in	ADP
ap-1880	78	16	2010	2010	NUM
ap-1880	78	17	at	at	ADP
ap-1880	78	18	plock	plock	NOUN
ap-1880	78	19	,	,	PUNCT
ap-1880	78	20	poland	poland	PROPN
ap-1880	78	21	.	.	PUNCT
ap-1880	79	1	unusual	unusual	ADJ
ap-1880	79	2	particle	particle	NOUN
ap-1880	79	3	physics	physics	NOUN
ap-1880	79	4	phenomena	phenomenon	NOUN
ap-1880	79	5	which	which	PRON
ap-1880	79	6	were	be	AUX
ap-1880	79	7	discussed	discuss	VERB
ap-1880	79	8	included	include	VERB
ap-1880	79	9	the	the	DET
ap-1880	79	10	“	"	PUNCT
ap-1880	79	11	centauro	centauro	NOUN
ap-1880	79	12	”	"	PUNCT
ap-1880	79	13	phenomena	phenomenon	NOUN
ap-1880	79	14	(	(	PUNCT
ap-1880	79	15	high	high	ADJ
ap-1880	79	16	energy	energy	NOUN
ap-1880	79	17	interactions	interaction	NOUN
ap-1880	79	18	with	with	ADP
ap-1880	79	19	a	a	DET
ap-1880	79	20	dirth	dirth	NOUN
ap-1880	79	21	of	of	ADP
ap-1880	79	22	neutral	neutral	ADJ
ap-1880	79	23	pions	pion	NOUN
ap-1880	79	24	,	,	PUNCT
ap-1880	79	25	hence	hence	ADV
ap-1880	79	26	gammas	gamma	NOUN
ap-1880	79	27	,	,	PUNCT
ap-1880	79	28	as	as	ADP
ap-1880	79	29	reaction	reaction	NOUN
ap-1880	79	30	products	product	NOUN
ap-1880	79	31	)	)	PUNCT
ap-1880	79	32	.	.	PUNCT
ap-1880	80	1	other	other	ADJ
ap-1880	80	2	phenomena	phenomenon	NOUN
ap-1880	80	3	discussed	discuss	VERB
ap-1880	80	4	were	be	AUX
ap-1880	80	5	the	the	DET
ap-1880	80	6	azimuthal	azimuthal	ADJ
ap-1880	80	7	anisotropy	anisotropy	NOUN
ap-1880	80	8	of	of	ADP
ap-1880	80	9	the	the	DET
ap-1880	80	10	final	final	ADJ
ap-1880	80	11	states	state	NOUN
ap-1880	80	12	of	of	ADP
ap-1880	80	13	very	very	ADV
ap-1880	80	14	high	high	ADJ
ap-1880	80	15	energy	energy	NOUN
ap-1880	80	16	interactions	interaction	NOUN
ap-1880	80	17	,	,	PUNCT
ap-1880	80	18	and	and	CCONJ
ap-1880	80	19	the	the	DET
ap-1880	80	20	“	"	PUNCT
ap-1880	80	21	long	long	ADJ
ap-1880	80	22	flying	fly	VERB
ap-1880	80	23	component	component	NOUN
ap-1880	80	24	”	"	PUNCT
ap-1880	80	25	,	,	PUNCT
ap-1880	80	26	an	an	DET
ap-1880	80	27	apparently	apparently	ADV
ap-1880	80	28	stronglyinteracting	stronglyinteracte	VERB
ap-1880	80	29	reaction	reaction	NOUN
ap-1880	80	30	product	product	NOUN
ap-1880	80	31	particle	particle	NOUN
ap-1880	80	32	which	which	PRON
ap-1880	80	33	travels	travel	VERB
ap-1880	80	34	well	well	ADV
ap-1880	80	35	beyond	beyond	ADP
ap-1880	80	36	a	a	DET
ap-1880	80	37	conventional	conventional	ADJ
ap-1880	80	38	interaction	interaction	NOUN
ap-1880	80	39	length	length	NOUN
ap-1880	80	40	before	before	ADP
ap-1880	80	41	interacting	interact	VERB
ap-1880	80	42	[	[	X
ap-1880	80	43	5	5	NUM
ap-1880	80	44	]	]	PUNCT
ap-1880	80	45	.	.	PUNCT
ap-1880	81	1	although	although	SCONJ
ap-1880	81	2	i	i	PRON
ap-1880	81	3	personally	personally	ADV
ap-1880	81	4	do	do	AUX
ap-1880	81	5	not	not	PART
ap-1880	81	6	believe	believe	VERB
ap-1880	81	7	that	that	SCONJ
ap-1880	81	8	any	any	PRON
ap-1880	81	9	of	of	ADP
ap-1880	81	10	these	these	DET
ap-1880	81	11	three	three	NUM
ap-1880	81	12	phenomena	phenomenon	NOUN
ap-1880	81	13	represent	represent	VERB
ap-1880	81	14	new	new	ADJ
ap-1880	81	15	physics	physic	NOUN
ap-1880	81	16	,	,	PUNCT
ap-1880	81	17	they	they	PRON
ap-1880	81	18	merit	merit	VERB
ap-1880	81	19	discussion	discussion	NOUN
ap-1880	81	20	and	and	CCONJ
ap-1880	81	21	study	study	NOUN
ap-1880	81	22	,	,	PUNCT
ap-1880	81	23	and	and	CCONJ
ap-1880	81	24	i	i	PRON
ap-1880	81	25	certainly	certainly	ADV
ap-1880	81	26	support	support	VERB
ap-1880	81	27	the	the	DET
ap-1880	81	28	research	research	NOUN
ap-1880	81	29	activities	activity	NOUN
ap-1880	81	30	and	and	CCONJ
ap-1880	81	31	goals	goal	NOUN
ap-1880	81	32	of	of	ADP
ap-1880	81	33	these	these	DET
ap-1880	81	34	groups	group	NOUN
ap-1880	81	35	.	.	PUNCT
ap-1880	82	1	this	this	PRON
ap-1880	82	2	is	be	AUX
ap-1880	82	3	a	a	DET
ap-1880	82	4	very	very	ADV
ap-1880	82	5	abbreviated	abbreviate	VERB
ap-1880	82	6	history	history	NOUN
ap-1880	82	7	,	,	PUNCT
ap-1880	82	8	with	with	ADP
ap-1880	82	9	an	an	DET
ap-1880	82	10	emphasis	emphasis	NOUN
ap-1880	82	11	on	on	ADP
ap-1880	82	12	the	the	DET
ap-1880	82	13	earlier	early	ADJ
ap-1880	82	14	events	event	NOUN
ap-1880	82	15	and	and	CCONJ
ap-1880	82	16	discoveries	discovery	NOUN
ap-1880	82	17	,	,	PUNCT
ap-1880	82	18	in	in	ADP
ap-1880	82	19	view	view	NOUN
ap-1880	82	20	of	of	ADP
ap-1880	82	21	the	the	DET
ap-1880	82	22	more	more	ADV
ap-1880	82	23	recent	recent	ADJ
ap-1880	82	24	research	research	NOUN
ap-1880	82	25	discussed	discuss	VERB
ap-1880	82	26	at	at	ADP
ap-1880	82	27	this	this	DET
ap-1880	82	28	workshop	workshop	NOUN
ap-1880	82	29	.	.	PUNCT
ap-1880	83	1	however	however	ADV
ap-1880	83	2	it	it	PRON
ap-1880	83	3	was	be	AUX
ap-1880	83	4	indeed	indeed	ADV
ap-1880	83	5	interesting	interesting	ADJ
ap-1880	83	6	reviewing	review	VERB
ap-1880	83	7	those	those	DET
ap-1880	83	8	earlier	early	ADJ
ap-1880	83	9	years	year	NOUN
ap-1880	83	10	.	.	PUNCT
ap-1880	84	1	we	we	PRON
ap-1880	84	2	look	look	VERB
ap-1880	84	3	forward	forward	ADV
ap-1880	84	4	to	to	ADP
ap-1880	84	5	future	future	ADJ
ap-1880	84	6	discoveries	discovery	NOUN
ap-1880	84	7	and	and	CCONJ
ap-1880	84	8	to	to	ADP
ap-1880	84	9	the	the	DET
ap-1880	84	10	solutions	solution	NOUN
ap-1880	84	11	to	to	ADP
ap-1880	84	12	our	our	PRON
ap-1880	84	13	many	many	ADJ
ap-1880	84	14	remaining	remain	VERB
ap-1880	84	15	cosmic	cosmic	ADJ
ap-1880	84	16	ray	ray	NOUN
ap-1880	84	17	problems	problem	NOUN
ap-1880	84	18	.	.	PUNCT
ap-1880	85	1	references	reference	NOUN
ap-1880	85	2	[	[	X
ap-1880	85	3	1	1	NUM
ap-1880	85	4	]	]	X
ap-1880	85	5	carlson	carlson	PROPN
ap-1880	85	6	,	,	PUNCT
ap-1880	85	7	p.	p.	NOUN
ap-1880	85	8	:	:	PUNCT
ap-1880	85	9	2012	2012	NUM
ap-1880	85	10	,	,	PUNCT
ap-1880	85	11	physics	physics	NOUN
ap-1880	85	12	today	today	NOUN
ap-1880	85	13	65	65	NUM
ap-1880	85	14	.	.	PUNCT
ap-1880	86	1	no	no	INTJ
ap-1880	86	2	.	.	NOUN
ap-1880	86	3	2	2	NUM
ap-1880	86	4	,	,	PUNCT
ap-1880	86	5	30	30	NUM
ap-1880	86	6	[	[	SYM
ap-1880	86	7	2	2	NUM
ap-1880	86	8	]	]	SYM
ap-1880	86	9	jones	jones	PROPN
ap-1880	86	10	,	,	PUNCT
ap-1880	86	11	l.w	l.w	PROPN
ap-1880	86	12	.	.	PROPN
ap-1880	86	13	:	:	PUNCT
ap-1880	86	14	1973	1973	NUM
ap-1880	86	15	,	,	PUNCT
ap-1880	86	16	bulletin	bulletin	NOUN
ap-1880	86	17	of	of	ADP
ap-1880	86	18	the	the	DET
ap-1880	86	19	american	american	PROPN
ap-1880	86	20	physical	physical	PROPN
ap-1880	86	21	society	society	PROPN
ap-1880	86	22	ii	ii	PROPN
ap-1880	86	23	,	,	PUNCT
ap-1880	86	24	18	18	NUM
ap-1880	86	25	,	,	PUNCT
ap-1880	86	26	33	33	NUM
ap-1880	86	27	[	[	SYM
ap-1880	86	28	3	3	NUM
ap-1880	86	29	]	]	X
ap-1880	86	30	grigorov	grigorov	NOUN
ap-1880	86	31	,	,	PUNCT
ap-1880	86	32	n.l	n.l	PROPN
ap-1880	86	33	.	.	PROPN
ap-1880	86	34	,	,	PUNCT
ap-1880	86	35	et	et	PROPN
ap-1880	86	36	al	al	PROPN
ap-1880	86	37	.	.	PROPN
ap-1880	86	38	:	:	PUNCT
ap-1880	86	39	1967	1967	NUM
ap-1880	86	40	,	,	PUNCT
ap-1880	86	41	proceedings	proceeding	NOUN
ap-1880	86	42	of	of	ADP
ap-1880	86	43	the	the	DET
ap-1880	86	44	tenth	tenth	ADJ
ap-1880	86	45	international	international	ADJ
ap-1880	86	46	cosmic	cosmic	ADJ
ap-1880	86	47	ray	ray	NOUN
ap-1880	86	48	conference	conference	NOUN
ap-1880	86	49	part	part	NOUN
ap-1880	86	50	a	a	PRON
ap-1880	86	51	,	,	PUNCT
ap-1880	86	52	512	512	NUM
ap-1880	86	53	[	[	SYM
ap-1880	86	54	4	4	NUM
ap-1880	86	55	]	]	SYM
ap-1880	86	56	jones	jones	PROPN
ap-1880	86	57	,	,	PUNCT
ap-1880	86	58	l.w	l.w	PROPN
ap-1880	86	59	.	.	PROPN
ap-1880	86	60	,	,	PUNCT
ap-1880	86	61	et	et	PROPN
ap-1880	86	62	al	al	PROPN
ap-1880	86	63	.	.	PROPN
ap-1880	86	64	:	:	PUNCT
ap-1880	86	65	1972	1972	NUM
ap-1880	86	66	,	,	PUNCT
ap-1880	86	67	nuclear	nuclear	ADJ
ap-1880	86	68	physics	physics	NOUN
ap-1880	86	69	b43	b43	NOUN
ap-1880	86	70	,	,	PUNCT
ap-1880	86	71	477	477	NUM
ap-1880	87	1	[	[	X
ap-1880	87	2	5	5	NUM
ap-1880	87	3	]	]	PUNCT
ap-1880	87	4	kempa	kempa	NOUN
ap-1880	87	5	,	,	PUNCT
ap-1880	87	6	j.	j.	PROPN
ap-1880	87	7	,	,	PUNCT
ap-1880	87	8	et	et	PROPN
ap-1880	87	9	al	al	PROPN
ap-1880	87	10	.	.	PUNCT
ap-1880	87	11	:	:	PUNCT
ap-1880	87	12	emulsion	emulsion	NOUN
ap-1880	87	13	chamber	chamber	NOUN
ap-1880	87	14	observations	observation	NOUN
ap-1880	87	15	of	of	ADP
ap-1880	87	16	centauros	centauro	NOUN
ap-1880	87	17	,	,	PUNCT
ap-1880	87	18	aligned	align	VERB
ap-1880	87	19	events	event	NOUN
ap-1880	87	20	and	and	CCONJ
ap-1880	87	21	the	the	DET
ap-1880	87	22	long	long	ADV
ap-1880	87	23	-	-	PUNCT
ap-1880	87	24	flying	fly	VERB
ap-1880	87	25	component	component	NOUN
ap-1880	87	26	,	,	PUNCT
ap-1880	87	27	central	central	ADJ
ap-1880	87	28	european	european	ADJ
ap-1880	87	29	journal	journal	PROPN
ap-1880	87	30	of	of	ADP
ap-1880	87	31	physics	physics	PROPN
ap-1880	87	32	(	(	PUNCT
ap-1880	87	33	to	to	PART
ap-1880	87	34	be	be	AUX
ap-1880	87	35	published	publish	VERB
ap-1880	87	36	)	)	PUNCT
ap-1880	87	37	discussion	discussion	NOUN
ap-1880	87	38	francesco	francesco	PROPN
ap-1880	87	39	ronga	ronga	ADV
ap-1880	87	40	—	—	PUNCT
ap-1880	87	41	it	it	PRON
ap-1880	87	42	is	be	AUX
ap-1880	87	43	interesting	interesting	ADJ
ap-1880	87	44	to	to	PART
ap-1880	87	45	remember	remember	VERB
ap-1880	87	46	the	the	DET
ap-1880	87	47	underwater	underwater	ADJ
ap-1880	87	48	measurements	measurement	NOUN
ap-1880	87	49	made	make	VERB
ap-1880	87	50	by	by	ADP
ap-1880	87	51	d.	d.	PROPN
ap-1880	87	52	pacini	pacini	PROPN
ap-1880	87	53	in	in	ADP
ap-1880	87	54	1907–1911	1907–1911	NUM
ap-1880	87	55	;	;	PUNCT
ap-1880	87	56	see	see	VERB
ap-1880	87	57	arxiv	arxiv	PROPN
ap-1880	87	58	1103–4392	1103–4392	NUM
ap-1880	87	59	(	(	PUNCT
ap-1880	87	60	a.	a.	PROPN
ap-1880	87	61	de	de	X
ap-1880	87	62	angelis	angelis	PROPN
ap-1880	87	63	)	)	PUNCT
ap-1880	87	64	.	.	PUNCT
ap-1880	88	1	lawrence	lawrence	PROPN
ap-1880	88	2	jones	jones	PROPN
ap-1880	88	3	—	—	PUNCT
ap-1880	88	4	this	this	PRON
ap-1880	88	5	was	be	AUX
ap-1880	88	6	indeed	indeed	ADV
ap-1880	88	7	a	a	DET
ap-1880	88	8	relevant	relevant	ADJ
ap-1880	88	9	set	set	NOUN
ap-1880	88	10	of	of	ADP
ap-1880	88	11	measurements	measurement	NOUN
ap-1880	88	12	,	,	PUNCT
ap-1880	88	13	which	which	PRON
ap-1880	88	14	also	also	ADV
ap-1880	88	15	hinted	hint	VERB
ap-1880	88	16	at	at	ADP
ap-1880	88	17	an	an	DET
ap-1880	88	18	extra	extra	ADJ
ap-1880	88	19	-	-	ADJ
ap-1880	88	20	terrestrial	terrestrial	ADJ
ap-1880	88	21	source	source	NOUN
ap-1880	88	22	of	of	ADP
ap-1880	88	23	cosmic	cosmic	ADJ
ap-1880	88	24	rays	ray	NOUN
ap-1880	88	25	.	.	PUNCT
ap-1880	89	1	499	499	NUM
ap-1880	89	2	acta	acta	PROPN
ap-1880	89	3	polytechnica	polytechnica	PROPN
ap-1880	89	4	53(supplement):497–499	53(supplement):497–499	NUM
ap-1880	89	5	,	,	PUNCT
ap-1880	89	6	2013	2013	NUM
ap-1880	89	7	1	1	NUM
ap-1880	89	8	the	the	DET
ap-1880	89	9	hess	hess	PROPN
ap-1880	89	10	discovery	discovery	NOUN
ap-1880	89	11	2	2	NUM
ap-1880	89	12	early	early	ADJ
ap-1880	89	13	discoveries	discovery	NOUN
ap-1880	89	14	3	3	NUM
ap-1880	89	15	the	the	DET
ap-1880	89	16	accelerator	accelerator	NOUN
ap-1880	89	17	–	–	PUNCT
ap-1880	89	18	cosmic	cosmic	ADJ
ap-1880	89	19	ray	ray	NOUN
ap-1880	89	20	interaction	interaction	NOUN
ap-1880	89	21	4	4	NUM
ap-1880	89	22	the	the	DET
ap-1880	89	23	echo	echo	NOUN
ap-1880	89	24	lake	lake	PROPN
ap-1880	89	25	and	and	CCONJ
ap-1880	89	26	mount	mount	PROPN
ap-1880	89	27	evans	evans	PROPN
ap-1880	89	28	research	research	PROPN
ap-1880	89	29	program	program	NOUN
ap-1880	89	30	5	5	NUM
ap-1880	89	31	recent	recent	ADJ
ap-1880	89	32	cosmic	cosmic	ADJ
ap-1880	89	33	ray	ray	NOUN
ap-1880	89	34	research	research	NOUN
ap-1880	89	35	references	reference	NOUN