id	author	title	date	pages	extension	mime	words	sentence	flesch	summary	cache	txt
ap-1951	Grillo, Aurelio F.	THE MASS COMPOSITION OF ULTRA HIGH ENERGY COSMIC RAYS	2013	5	.pdf	application/pdf	3104	162	61	[ g /c m m a x < X 650 700 750 800 850 1407 1251 998 781 619 457 331 230 188 143 186 106 47 EPOSv1.99 p Fe QGSJET01 p Fe SIBYLL2.1 p Fe QGSJETII p Fe EPOSv1.99 p Fe QGSJET01 p Fe SIBYLL2.1 p Fe QGSJETII p Fe Figure 3. Xmax (upper panel) and RMS(Xmax) com- pared with predicted values for pure compositions in different interaction models. Consequently they pro- vide different expectations for 〈Xmax〉 and σ(Xmax).	cache/ap-1951.pdf	txt/ap-1951.txt