MEASUREMENT OF THE INCLUSIVE J/PSI PRODUCTION CROSS-SECTIONS IN PBARP AND PP COLLISIONS AT SQUARE-ROOT S=24.3 GEV

被引：26

作者：

MOREL, C

机构：

[1] Institut de Physique Nucléaire, Université de Lausanne

[2] Rockefeller University, New York

[3] CERN

[4] Physics Department, University of Michigan, Ann Arbor

来源：

PHYSICS LETTERS B | 1990年 / 252卷 / 03期

关键词：

D O I：

10.1016/0370-2693(90)90579-U

中图分类号：

P1 [天文学];

学科分类号：

0704 ;

摘要：

The inclusive cross section times branching ratio for J/OMEGA --> e+ e- has been measured in the forward region in the UA6 experiment for pBARp and pp collisions at square root s = 24.3 GeV. The ratio of the pp to pBARp cross sections is found to be 0.76 +/- 0.14 +/- 0.06. This demonstrates that gluon-gluon fusion dominates over quark-antiquark annihilation in the formation of the cBARc state.

引用

页码：505 / 510

页数：6

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