INELASTIC LEPTOPRODUCTION OF J/PSI AND THE GLUON DISTRIBUTION IN THE NUCLEON

被引：19
|
作者：
MERABET, H [1 ]
MATHIOT, JF [1 ]
MENDEZGALAIN, R [1 ]
机构：
[1] CTR ETUD SACLAY, DAPNIA, SPHN, F-91191 GIF SUR YVETTE, FRANCE
来源：
ZEITSCHRIFT FUR PHYSIK C-PARTICLES AND FIELDS | 1994年 / 62卷 / 04期
关键词：
D O I：
10.1007/BF01574167
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：
In view of the recent experimental results at CERN, we calculate exactly the Q2-dependence of the inelastic leptoproduction cross-section of J/psi. We also make predictions for the high energy (HERA) as well as low energy (30 GeV electron beam on a fixed target) regimes. The exact calculation of the Q2-dependence of the cross-section is essential to extract the gluon distribution function from data. We find that using the exact leptoproduction cross-section amounts to increase the power in the parametrization of the gluon distribution function extracted so far in muoproduction experiments
引用
收藏
页码：639 / 647
页数：9
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