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Measurement of the charged-particle multiplicity inside jets from root s=8 TeV pp collisions with the ATLAS detector
ATLAS Collaboration
2016
发表期刊EUROPEAN PHYSICAL JOURNAL C
卷号76期号:6
摘要The number of charged particles inside jets is a widely used discriminant for identifying the quark or gluon nature of the initiating parton and is sensitive to both the perturbative and non-perturbative components of fragmentation. This paper presents a measurement of the average number of charged particles with p(T) > 500 MeV inside high-momentum jets in dijet events using 20.3 fb(-1) of data recorded with the ATLAS detector in pp collisions at root s = 8 TeV collisions at the LHC. The jets considered have transverse momenta from 50 GeV up to and beyond 1.5 TeV. The reconstructed charged-particle track multiplicity distribution is unfolded to remove distortions from detector effects and the resulting charged-particle multiplicity is compared to several models. Furthermore, quark and gluon jet fractions are used to extract the average charged-particle multiplicity for quark and gluon jets separately.
文章类型Article
DOI10.1140/epjc/s10052-016-4126-5
关键词[WOS]QCD ANALYTIC PREDICTIONS ; SYMMETRIC 3-JET EVENTS ; GLUON JETS ; QUARK JETS ; FRAGMENTATION PROPERTIES ; PARTON DISTRIBUTIONS ; ENERGY-DEPENDENCE ; E+E-ANNIHILATION ; HERWIG PLUS ; LHC
语种英语
WOS记录号WOS:000386036400001
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文献类型期刊论文
条目标识符http://ir.ihep.ac.cn/handle/311005/260928
专题实验物理中心
作者单位中国科学院高能物理研究所
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ATLAS Collaboration. Measurement of the charged-particle multiplicity inside jets from root s=8 TeV pp collisions with the ATLAS detector[J]. EUROPEAN PHYSICAL JOURNAL C,2016,76(6).
APA ATLAS Collaboration.(2016).Measurement of the charged-particle multiplicity inside jets from root s=8 TeV pp collisions with the ATLAS detector.EUROPEAN PHYSICAL JOURNAL C,76(6).
MLA ATLAS Collaboration."Measurement of the charged-particle multiplicity inside jets from root s=8 TeV pp collisions with the ATLAS detector".EUROPEAN PHYSICAL JOURNAL C 76.6(2016).
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