Multiparton collisions and multiplicity distribution in high-energy pp((p)over-barp) collisions

被引：2
|
作者：
Matinyan, S [1 ]
机构：
[1] Duke Univ, Dept Phys, Durham, NC 27708 USA
[2] Yerevan Phys Inst, Yerevan 375036, Armenia
来源：
PHYSICS REPORTS-REVIEW SECTION OF PHYSICS LETTERS | 1999年 / 320卷 / 1-6期
关键词：
KNO scaling; partons; mini-jets; proton radius;
D O I：
10.1016/S0370-1573(99)00071-X
中图分类号：
O4 [物理学];
学科分类号：
0702 ;
摘要：
We discuss the multiplicity distribution for the highest accessible energies of pp- and pp-interactions from the point of view of multiparton collisions. The inelastic cross sections for single, sigma(1) and multiple (double and, presumably, triple), sigma(2) parton collisions are calculated from the analysis of experimental data on the multiplicity distribution up to Tevatron energies. It is found that sigma(1) becomes energy independent while oz increases with root s for root s greater than or equal to 200 GeV. The observed growth of [p(perpendicular to)] with multiplicity is attributed to the increasing role of multiparton collisions for the high-energy (p) over bar p(pp)-inelastic interactions. sigma(2+3) reproduces quite well the cross-section for the mini-jet production. (C) 1999 Elsevier Science B.V. All rights reserved.
引用
收藏
页码：261 / 264
页数：4
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