Test of colour reconnection models using three-jet events in hadronic Z decays
ALEPH Collaboration
刊名EUROPEAN PHYSICAL JOURNAL C
2006
卷号48期号:3页码:685-698
关键词GLUON JETS QUARK JETS W-BOSON LEP QCD FRAGMENTATION SEARCH MASS ANNIHILATIONS GENERATION
学科分类Physics
DOI10.1140/epjc/s10052-006-0017-5
通讯作者Schael, S (reprint author), Rhein Westfal TH Aachen, Inst Phys, D-52056 Aachen, Germany.
英文摘要Hadronic Z decays into three jets are used to test QCD models of colour reconnection (CR). A sensitive quantity is the rate of gluon jets with a gap in the particle rapidity distribution and zero jet charge. Gluon jets are identified by either energy-ordering or by tagging two b-jets. The rates predicted by two string-based tunable CR models, one implemented in JETSET (the GAL model), the other in ARIADNE, are too high and disfavoured by the data, whereas the rates from the corresponding non-CR standard versions of these generators are too low. The data can be described by the GAL model assuming a small value for the R(0) parameter in the range 0.01-0.02.
类目[WOS]Physics, Particles & Fields
收录类别SCI
语种英语
WOS记录号WOS:000242661400001
引用统计
被引频次:9[WOS]   [WOS记录]     [WOS相关记录]
文献类型期刊论文
条目标识符http://ir.ihep.ac.cn/handle/311005/212761
专题中国科学院高能物理研究所_实验物理中心_期刊论文
作者单位中国科学院高能物理研究所
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ALEPH Collaboration. Test of colour reconnection models using three-jet events in hadronic Z decays[J]. EUROPEAN PHYSICAL JOURNAL C,2006,48(3):685-698.
APA ALEPH Collaboration.(2006).Test of colour reconnection models using three-jet events in hadronic Z decays.EUROPEAN PHYSICAL JOURNAL C,48(3),685-698.
MLA ALEPH Collaboration."Test of colour reconnection models using three-jet events in hadronic Z decays".EUROPEAN PHYSICAL JOURNAL C 48.3(2006):685-698.
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