Charm production at low Q2 with the ZEUS detector

被引：0
|
作者：
Aghuzumtsyan, G [1 ]
机构：
[1] Univ Bonn, Inst Phys, D-5300 Bonn, Germany
来源：
Deep Inelastic Scattering | 2005年 / 792卷
关键词：
charm; production; D*; low Q(2); cross sections; QCD;
D O I：
暂无
中图分类号：
O57 [原子核物理学、高能物理学];
学科分类号：
070202 ;
摘要：
The production of D*(2010) mesons in deep inelastic scattering at low Q(2) has been measured with the ZEUS detector at HERA using an integrated luminosity of 81.9 pb(-1). The D* mesons have been reconstructed from their decay into D-0 and pi(s) with the decay D-0 -> K-pi(+) and corresponding antiparticle decay. Differential D* cross sections as functions of exchanged photon virtuality, Q(2), inelasticity, y, transverse momentum of the D* meson, p(T)(D*), and pseudorapidity of the D* meson, eta(D*), have been measured, using the beam-pipe calorimeter of ZEUS. The kinematic region of the measurement is 0.05 < Q(2) < 0.7 GeV2, 0.02 < y < 0.85, 1.5 < p(T)(D*) < 9.0 GeV and vertical bar eta(D*)vertical bar < 1.5. The measured differential cross sections are compared with the predictions of next-to-leading-orderQCD.
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收藏
页码：803 / 806
页数：4
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