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

Atlas Collaboration
•
Aad G.
•
Abbott B.
altro
Zwalinski L.
2016
  • journal article

Periodico
THE EUROPEAN PHYSICAL JOURNAL. C, PARTICLES AND FIELDS
Abstract
he 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 >500 pT> 500 {mathrm{MeV}} MeV inside high-momentum jets in dijet events using 20.3 fb-1 of data recorded with the ATLAS detector in pp collisions at √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.
DOI
10.1140/epjc/s10052-016-4126-5
WOS
WOS:000386036400001
Archivio
http://hdl.handle.net/11390/1109776
info:eu-repo/semantics/altIdentifier/scopus/2-s2.0-84977537069
Diritti
metadata only access
Web of Science© citazioni
45
Data di acquisizione
Mar 27, 2024
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