GLUON SHADOWING AND CHARMONIUM BOTTONIUM PRODUCTION ON NUCLEAR TARGETS

被引：33

作者：

GUPTA, S

SATZ, H

机构：

[1] Theory Division, CERN, Geneva 23

来源：

ZEITSCHRIFT FUR PHYSIK C-PARTICLES AND FIELDS | 1992年 / 55卷 / 03期

关键词：

D O I：

10.1007/BF01565096

中图分类号：

O412 [相对论、场论]; O572.2 [粒子物理学];

学科分类号：

摘要：

We examine the suppression of J/psi, psi' and gamma production on nuclear targets, as observed for proton and pion beams of energies from 200 to 800 GeV. We find that this suppression leads to a universal scaling curve, which indicates that it is due to nuclear modifications of the gluon density ("shadowing"). A parametrisation of the nuclear effect on the gluon density is extracted from the data and used to obtain quantitative estimates for corresponding effects in high-energy heavy-ion collisions.

引用

页码：391 / 396

页数：6

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