Measurement of the charged-particle multiplicity inside jets from root s=8 TeV pp collisions with the ATLAS detector

doi:10.1140/epjc/s10052-016-4126-5

	Measurement of the charged-particle multiplicity inside jets from root s=8 TeV pp collisions with the ATLAS detector
	ATLAS Collaboration
刊名	EUROPEAN PHYSICAL JOURNAL C
	2016
卷号	76 期号:6
DOI	10.1140/epjc/s10052-016-4126-5
英文摘要	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.
语种	英语
WOS记录号	WOS:000386036400001
内容类型	期刊论文
源URL	[http://ir.ihep.ac.cn/handle/311005/260928]
专题	高能物理研究所_实验物理中心
作者单位	中国科学院高能物理研究所
推荐引用方式 GB/T 7714	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).