Inelastic charmonium production at HERA

被引：5

作者：

Naroska, B ^{[1
]}

机构：

[1] Inst Expt Phys 2, D-22761 Hamburg, Germany

来源：

NUCLEAR PHYSICS B-PROCEEDINGS SUPPLEMENTS | 2000年 / 82卷

关键词：

D O I：

10.1016/S0920-5632(00)00152-3

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：

New results with increased statistics are presented for the production of J/psi in the photoproduction limit Q(2) --> 0. Electroproduction has been analysed for 2 less than or similar to Q(2) less than or similar to 80 GeV2 in a completely inclusive way and with an inelastic selection aimed at retaining possible colour octet contributions. Calculations based on the colour singlet model in NLO are compared to the photoproduction data and good agreement is found. Results from calculations within the NRQCD approach including colour octet contributions are confronted with the data in both Q(2) regimes. A Monte Carlo model based on soft colour interactions is furthermore compared to the inclusive cross sections.

引用

页码：187 / 192

页数：6

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