The structure of charm jets in deep-inelastic scattering

被引：0

作者：

Perieanu, A ^{[1
]}

机构：

[1] DESY, D-2000 Hamburg, Germany

来源：

DEEP INELASTIC SCATTERING | 2005年 / 792卷

关键词：

jet shape; charm; soft gluons; dead cone;

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 structure of charm jets in deep-inelastic scattering (DIS) is studied with the HI detector at HERA using an integrated luminosity of 50 pb(-1). The charm events are tagged by a D*-meson. The events are required to have at least one jet containing the D*-meson (D*Jet). A second jet (OtherJet) is also studied, if present. The structure of these jets is investigated by measuring jet shapes and subjet multiplicities as well as the angular distribution of a subjet defined to give a correlation with a corresponding gluon at the parton level. The study of the latter distribution and its dependence on the jet energy is motivated by the suppression of soft gluon radiation from heavy quarks, as expected from QCD. All data are reasonably well described by a QCD model for charm production as implemented in RAPGAP and JETSET.

引用

页码：807 / 810

页数：4

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