Please use this identifier to cite or link to this item: https://hdl.handle.net/2440/115040
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Type: Journal article
Title: Measurement of the charged-particle multiplicity inside jets from √s = 8 TeV pp collisions with the ATLAS detector
Other Titles: Measurement of the charged-particle multiplicity inside jets from root s = 8 TeV pp collisions with the ATLAS detector
Author: Aad, G.
Abbott, B.
Abdallah, J.
Abdinov, O.
Abeloos, B.
Aben, R.
Abolins, M.
AbouZeid, O.S.
Abraham, N.L.
Abramowicz, H.
Abreu, H.
Abreu, R.
Abulaiti, Y.
Acharya, B.S.
Adamczyk, L.
Adams, D.L.
Adelman, J.
Adomeit, S.
Adye, T.
Affolder, A.A.
et al.
Citation: European Physical Journal C: Particles and Fields, 2016; 76(6):322-1-322-23
Publisher: Springer
Issue Date: 2016
ISSN: 1434-6044
1434-6052
Statement of
Responsibility: 
G. Aad ... P. Jackson ... L. Lee ... A. Petridis ... M.J. White ... [et al.] (The ATLAS Collaboration)
Abstract: 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 pT>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 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.
Keywords: Atlas Collaboration
Rights: © CERN for the benefit of the ATLAS collaboration 2016. This article is published with open access at Springerlink.com. Open Access This article is distributed under the terms of the Creative Commons Attribution 4.0 International License (http://creativecomm ons.org/licenses/by/4.0/), which permits unrestricted use, distribution, and reproduction in any medium, provided you give appropriate credit to the original author(s) and the source, provide a link to the Creative Commons license, and indicate if changes were made. Funded by SCOAP3.
DOI: 10.1140/epjc/s10052-016-4126-5
Grant ID: ARC
Published version: http://dx.doi.org/10.1140/epjc/s10052-016-4126-5
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