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

G Aad; B. Abbott; J Abdallah; O Abdinov; B Abeloos; R Aben; Torsten Åkesson; Simona Bocchetta; LENE BRYNGEMARK; Caterina Doglioni; Anders Floderus; Anthony Hawkins; Vincent Hedberg; Jenny Ivarsson; Göran Jarlskog; Else Lytken; Ulf Mjörnmark; Oxana Smirnova; Oleksandr Viazlo; ATLAS Collaboration

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

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

G Aad, B. Abbott, J Abdallah, O Abdinov, B Abeloos, R Aben, Torsten Åkesson, Simona Bocchetta, LENE BRYNGEMARK, Caterina Doglioni, Anders Floderus, Anthony Hawkins, Vincent Hedberg, Jenny Ivarsson, Göran Jarlskog, Else Lytken, Ulf Mjörnmark, Oxana Smirnova, Oleksandr Viazlo, ATLAS Collaboration

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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.

Original language	English
Article number	322
Number of pages	23
Journal	European Physical Journal C
Volume	76
Issue number	6
DOIs	https://doi.org/10.1140/epjc/s10052-016-4126-5
Publication status	Published - 2016

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Cited By :1

Export Date: 29 June 2017

Subject classification (UKÄ)

Subatomic Physics

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10.1140/epjc/s10052-016-4126-5

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Aad, G., Abbott, B., Abdallah, J., Abdinov, O., Abeloos, B., Aben, R., Åkesson, T., Bocchetta, S., BRYNGEMARK, LENE., Doglioni, C., Floderus, A., Hawkins, A., Hedberg, V., Ivarsson, J., Jarlskog, G., Lytken, E., Mjörnmark, U., Smirnova, O., Viazlo, O., & ATLAS Collaboration (2016). Measurement of the charged-particle multiplicity inside jets from √s = 8 TeV pp collisions with the ATLAS detector. European Physical Journal C, 76(6), Article 322. https://doi.org/10.1140/epjc/s10052-016-4126-5

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title = "Measurement of the charged-particle multiplicity inside jets from √s = 8 TeV pp collisions with the ATLAS detector",

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. {\textcopyright} 2016, CERN for the benefit of the ATLAS collaboration.",

author = "G Aad and B. Abbott and J Abdallah and O Abdinov and B Abeloos and R Aben and Torsten {\AA}kesson and Simona Bocchetta and LENE BRYNGEMARK and Caterina Doglioni and Anders Floderus and Anthony Hawkins and Vincent Hedberg and Jenny Ivarsson and G{\"o}ran Jarlskog and Else Lytken and Ulf Mj{\"o}rnmark and Oxana Smirnova and Oleksandr Viazlo and {ATLAS Collaboration}",

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doi = "10.1140/epjc/s10052-016-4126-5",

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Aad, G, Abbott, B, Abdallah, J, Abdinov, O, Abeloos, B, Aben, R, Åkesson, T, Bocchetta, S, BRYNGEMARK, LENE , Doglioni, C, Floderus, A, Hawkins, A, Hedberg, V, Ivarsson, J, Jarlskog, G , Lytken, E, Mjörnmark, U, Smirnova, O, Viazlo, O & ATLAS Collaboration 2016, 'Measurement of the charged-particle multiplicity inside jets from √s = 8 TeV pp collisions with the ATLAS detector', European Physical Journal C, vol. 76, no. 6, 322. https://doi.org/10.1140/epjc/s10052-016-4126-5

TY - JOUR

T1 - Measurement of the charged-particle multiplicity inside jets from √s = 8 TeV pp collisions with the ATLAS detector

AU - Aad, G

AU - Abbott, B.

AU - Abdallah, J

AU - Abdinov, O

AU - Abeloos, B

AU - Aben, R

AU - Åkesson, Torsten

AU - Bocchetta, Simona

AU - BRYNGEMARK, LENE

AU - Doglioni, Caterina

AU - Floderus, Anders

AU - Hawkins, Anthony

AU - Hedberg, Vincent

AU - Ivarsson, Jenny

AU - Jarlskog, Göran

AU - Lytken, Else

AU - Mjörnmark, Ulf

AU - Smirnova, Oxana

AU - Viazlo, Oleksandr

AU - ATLAS Collaboration

N1 - Cited By :1 Export Date: 29 June 2017

PY - 2016

Y1 - 2016

N2 - 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.

AB - 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.

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DO - 10.1140/epjc/s10052-016-4126-5

M3 - Article

C2 - 28280438

SN - 1434-6044

VL - 76

JO - European Physical Journal C

JF - European Physical Journal C

IS - 6

M1 - 322

ER -

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

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