#  p-air collisions  1000 events
#  E   Pt(k&pi)  Pt(N)	 mul	<x>N   #ofD 
1.e12	.328	.4625	26.7	.550	2
1.e15	.429	.650	110	.535	16
1.e18	.623	.699	331	.485	40
1.e21			930