Çetin, Serkant Ali2020-11-262020-11-262016-06-131434-60521434-6044https://hdl.handle.net/11411/2739https://doi.org/10.1140/epjc/s10052-016-4126-5The 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.eninfo:eu-repo/semantics/openAccessQUARK JETSGLUON JETSFRAGMENTATION PROPERTIESPARTON DISTRIBUTIONSENERGY-DEPENDENCEE+E-ANNIHILATIONEVENTSArticle2-s2.0-8497753706910.1140/epjc/s10052-016-4126-5Q1WOS:000386036400001