Measurement of the charged-particle multiplicity inside jets from √s = 8 TeV pp collisions with the ATLAS detector
(2016) In European Physical Journal C 76(6).- 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 >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... (More)
- 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 >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. © 2016, CERN for the benefit of the ATLAS collaboration. (Less)
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- author
- author collaboration
- organization
- publishing date
- 2016
- type
- Contribution to journal
- publication status
- published
- subject
- in
- European Physical Journal C
- volume
- 76
- issue
- 6
- article number
- 322
- pages
- 23 pages
- publisher
- Springer
- external identifiers
-
- scopus:84977537069
- pmid:28280438
- ISSN
- 1434-6044
- DOI
- 10.1140/epjc/s10052-016-4126-5
- language
- English
- LU publication?
- yes
- additional info
- Cited By :1 Export Date: 29 June 2017
- id
- 5b2e3992-2ce3-49ab-af92-7d9a99c55244
- date added to LUP
- 2017-06-29 07:34:36
- date last changed
- 2023-04-07 18:30:03
@article{5b2e3992-2ce3-49ab-af92-7d9a99c55244, 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 >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. © 2016, CERN for the benefit of the ATLAS collaboration.}}, author = {{Aad, G and Abbott, B. and Abdallah, J and Abdinov, O and Abeloos, B and Aben, R and Åkesson, Torsten and Bocchetta, Simona and BRYNGEMARK, LENE and Doglioni, Caterina and Floderus, Anders and Hawkins, Anthony and Hedberg, Vincent and Ivarsson, Jenny and Jarlskog, Göran and Lytken, Else and Mjörnmark, Ulf and Smirnova, Oxana and Viazlo, Oleksandr}}, issn = {{1434-6044}}, language = {{eng}}, number = {{6}}, publisher = {{Springer}}, series = {{European Physical Journal C}}, title = {{Measurement of the charged-particle multiplicity inside jets from √s = 8 TeV pp collisions with the ATLAS detector}}, url = {{http://dx.doi.org/10.1140/epjc/s10052-016-4126-5}}, doi = {{10.1140/epjc/s10052-016-4126-5}}, volume = {{76}}, year = {{2016}}, }