Heavy quark production in 920 GeV proton-nucleus collisions

被引：0
|
作者：
Danilov, M [1 ]
机构：
[1] ITEP, Moscow 117218, Russia
来源：
ICHEP 2005: Proceedings of the 32nd International Conference High Energy Physics Vols 1 and 2 | 2005年
关键词：
D O I：
暂无
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：
HERA-B is a fixed-target multi-particle spectrometer experiment at the 920 GeV HERA proton beam at DESY The collected data sample from the 2002/2003 HERA run includes 200 million interactions recorded with a minimum bias trigger and about 300,000 J/psi decays recorded with a dilepton trigger. These data samples are being analyzed to extract production cross sections for J/psi, gamma, and charmed mesons as well as the total b-quark production cross section. Additionally, aspects of charmonium production including the chi(c) to J/psi cross section ratio, the psi(2S) / J/psi cross section ratio, and the x(F), transverse momentum and atomic number dependence of the J/psi cross section in the target hemisphere are under investigation. Preliminary results on these topics are presented.
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收藏
页码：632 / 635
页数：4
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