Measurement of Charged Hadron Production in Z -Tagged Jets in Proton-Proton Collisions at s =8 TeV

LHCb Collaboration

doi:10.1103/PhysRevLett.123.232001

Measurement of Charged Hadron Production in Z -Tagged Jets in Proton-Proton Collisions at s =8 TeV

LHCb Collaboration

Science Park 105
University of Zurich
Universidade de Santiago de Compostela
University of Bristol
Syracuse University
University of Michigan, Ann Arbor
Clermont-Auvergne University
University of Cincinnati
LNF-INFN
University of Dortmund
European Organization for Nuclear Research
University of Glasgow
University of Barcelona
Petersburg Nuclear Physics Institute (PNPI)
Imperial College London
Instituto de Biofisica da UFRJ
Laboratoire de l'Accélérateur Linéaire
Istituto Nazionale di Fisica Nucleare, Sezione di Firenze
ENAC-IIC-GEL
Sezione INFN di Ferrara
University of Maryland, College Park
Aix-Marseille Université
Kurchatov Institute
Yandex School of Data Analysis
Sezione INFN di Cagliari
University of Heidelberg
University of Warwick
University of Manchester
Sezione di Genova
National University of Science and Technology “MISIS”
National Centre for Nuclear Research (NCBJ)
Istituto Nazionale di Fisica Nucleare, Sezione di Pisa
Centro Brasileiro de Pesquisas Fisicas
University of Chinese Academy of Sciences
INFN Sezione di Milano-Bicocca
Institute for Theoretical and Experimental Physics
Sorbonne Université
RWTH Aachen University
Moscow State University
INFN
INFN Sezione di Bologna
University of Cambridge
Institute for Nuclear Physics
University of Birmingham
University of Oxford
Sezione di Roma
Massachusetts Institute of Technology
Budker Institute of Nuclear Physics of the Siberian Branch of the RAS
University of Liverpool
Wuhan University
INFN Roma Tor Vergata
LTHE (UMR 5564 CNRS/IRD/Université de Grenoble)
Tsinghua University
University of Edinburgh
Horia Hulubei National Institute of Physics and Nuclear Engineering
MST-8, Los Alamos National Laboratory
INFN Sezione di Bari
Max-Planck-Institut für Kernphysik
Agh University of Science and Technology Faculty of Computer Science
National Research University
Central China Normal University
Kharkov Institute of Physics and Technology
CCLRC Rutherford Appleton Laboratory
Institute for Nuclear Research of the Russian Academy of Sciences
Sezione INFN di Milano
University of Valencia
Pontifícia Universidade Católica do Rio de Janeiro
Universität Rostock
Univ. Mentouri de Constantine
Vrije Universiteit Amsterdam
National Research Tomsk Polytechnic University
Institute of Nuclear Research, National Academy of Sciences in Ukraine
South China Normal University
Kurchatov Institute
University College Dublin
Universidad Nacional de Colombia
ICS/University of Groningen

Résultats de recherche: Contribution à un journal › Article › Revue par des pairs

Résumé

The production of charged hadrons within jets recoiling against a Z boson is measured in proton-proton collision data at s=8 TeV recorded by the LHCb experiment. The charged-hadron structure of the jet is studied longitudinally and transverse to the jet axis for jets with transverse momentum pT>20 GeV and in the pseudorapidity range 2.5<η<4. These are the first measurements of jet hadronization at these forward rapidities and also the first where the jet is produced in association with a Z boson. In contrast to previous hadronization measurements at the Large Hadron Collider, which are dominated by gluon jets, these measurements probe predominantly light-quark jets which are found to be more longitudinally and transversely collimated with respect to the jet axis when compared to the previous gluon dominated measurements. Therefore, these results provide valuable information on differences between quarks and gluons regarding nonperturbative hadronization dynamics.

langue originale	Anglais
Numéro d'article	232001
journal	Physical Review Letters
Volume	123
Numéro de publication	23
Les DOIs	https://doi.org/10.1103/PhysRevLett.123.232001
état	Publié - 4 déc. 2019
Modification externe	Oui

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10.1103/PhysRevLett.123.232001

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@article{46730c30955e4ab3abe3ae0a062f8366,

title = "Measurement of Charged Hadron Production in Z -Tagged Jets in Proton-Proton Collisions at s =8 TeV",

abstract = "The production of charged hadrons within jets recoiling against a Z boson is measured in proton-proton collision data at s=8 TeV recorded by the LHCb experiment. The charged-hadron structure of the jet is studied longitudinally and transverse to the jet axis for jets with transverse momentum pT>20 GeV and in the pseudorapidity range 2.5<η<4. These are the first measurements of jet hadronization at these forward rapidities and also the first where the jet is produced in association with a Z boson. In contrast to previous hadronization measurements at the Large Hadron Collider, which are dominated by gluon jets, these measurements probe predominantly light-quark jets which are found to be more longitudinally and transversely collimated with respect to the jet axis when compared to the previous gluon dominated measurements. Therefore, these results provide valuable information on differences between quarks and gluons regarding nonperturbative hadronization dynamics.",

author = "\{LHCb Collaboration\} and R. Aaij and \{Abell{\'a}n Beteta\}, C. and B. Adeva and M. Adinolfi and Aidala, \{C. A.\} and Z. Ajaltouni and S. Akar and P. Albicocco and J. Albrecht and F. Alessio and M. Alexander and \{Alfonso Albero\}, A. and G. Alkhazov and \{Alvarez Cartelle\}, P. and Alves, \{A. A.\} and S. Amato and Y. Amhis and L. An and L. Anderlini and G. Andreassi and M. Andreotti and Andrews, \{J. E.\} and F. Archilli and \{Arnau Romeu\}, J. and A. Artamonov and M. Artuso and K. Arzymatov and E. Aslanides and M. Atzeni and B. Audurier and S. Bachmann and Back, \{J. J.\} and S. Baker and V. Balagura and W. Baldini and A. Baranov and Barlow, \{R. J.\} and S. Barsuk and W. Barter and M. Bartolini and F. Baryshnikov and V. Batozskaya and B. Batsukh and A. Battig and V. Battista and A. Bay and F. Bedeschi and I. Bediaga and F. Fleuret and E. Maurice",

note = "Publisher Copyright: {\textcopyright} 2019 CERN. for the LHCb Collaboration. Published by the American Physical Society under the terms of the {"}https://creativecommons.org/licenses/by/4.0/{"} Creative Commons Attribution 4.0 International license. Further distribution of this work must maintain attribution to the author(s) and the published article's title, journal citation, and DOI.",

year = "2019",

month = dec,

day = "4",

doi = "10.1103/PhysRevLett.123.232001",

language = "English",

volume = "123",

journal = "Physical Review Letters",

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number = "23",

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T1 - Measurement of Charged Hadron Production in Z -Tagged Jets in Proton-Proton Collisions at s =8 TeV

AU - LHCb Collaboration

AU - Aaij, R.

AU - Abellán Beteta, C.

AU - Adeva, B.

AU - Adinolfi, M.

AU - Aidala, C. A.

AU - Ajaltouni, Z.

AU - Akar, S.

AU - Albicocco, P.

AU - Albrecht, J.

AU - Alessio, F.

AU - Alexander, M.

AU - Alfonso Albero, A.

AU - Alkhazov, G.

AU - Alvarez Cartelle, P.

AU - Alves, A. A.

AU - Amato, S.

AU - Amhis, Y.

AU - An, L.

AU - Anderlini, L.

AU - Andreassi, G.

AU - Andreotti, M.

AU - Andrews, J. E.

AU - Archilli, F.

AU - Arnau Romeu, J.

AU - Artamonov, A.

AU - Artuso, M.

AU - Arzymatov, K.

AU - Aslanides, E.

AU - Atzeni, M.

AU - Audurier, B.

AU - Bachmann, S.

AU - Back, J. J.

AU - Baker, S.

AU - Balagura, V.

AU - Baldini, W.

AU - Baranov, A.

AU - Barlow, R. J.

AU - Barsuk, S.

AU - Barter, W.

AU - Bartolini, M.

AU - Baryshnikov, F.

AU - Batozskaya, V.

AU - Batsukh, B.

AU - Battig, A.

AU - Battista, V.

AU - Bay, A.

AU - Bedeschi, F.

AU - Bediaga, I.

AU - Fleuret, F.

AU - Maurice, E.

N1 - Publisher Copyright: © 2019 CERN. for the LHCb Collaboration. Published by the American Physical Society under the terms of the "https://creativecommons.org/licenses/by/4.0/" Creative Commons Attribution 4.0 International license. Further distribution of this work must maintain attribution to the author(s) and the published article's title, journal citation, and DOI.

PY - 2019/12/4

Y1 - 2019/12/4

N2 - The production of charged hadrons within jets recoiling against a Z boson is measured in proton-proton collision data at s=8 TeV recorded by the LHCb experiment. The charged-hadron structure of the jet is studied longitudinally and transverse to the jet axis for jets with transverse momentum pT>20 GeV and in the pseudorapidity range 2.5<η<4. These are the first measurements of jet hadronization at these forward rapidities and also the first where the jet is produced in association with a Z boson. In contrast to previous hadronization measurements at the Large Hadron Collider, which are dominated by gluon jets, these measurements probe predominantly light-quark jets which are found to be more longitudinally and transversely collimated with respect to the jet axis when compared to the previous gluon dominated measurements. Therefore, these results provide valuable information on differences between quarks and gluons regarding nonperturbative hadronization dynamics.

AB - The production of charged hadrons within jets recoiling against a Z boson is measured in proton-proton collision data at s=8 TeV recorded by the LHCb experiment. The charged-hadron structure of the jet is studied longitudinally and transverse to the jet axis for jets with transverse momentum pT>20 GeV and in the pseudorapidity range 2.5<η<4. These are the first measurements of jet hadronization at these forward rapidities and also the first where the jet is produced in association with a Z boson. In contrast to previous hadronization measurements at the Large Hadron Collider, which are dominated by gluon jets, these measurements probe predominantly light-quark jets which are found to be more longitudinally and transversely collimated with respect to the jet axis when compared to the previous gluon dominated measurements. Therefore, these results provide valuable information on differences between quarks and gluons regarding nonperturbative hadronization dynamics.

UR - https://www.scopus.com/pages/publications/85076638764

U2 - 10.1103/PhysRevLett.123.232001

DO - 10.1103/PhysRevLett.123.232001

M3 - Article

C2 - 31868452

AN - SCOPUS:85076638764

SN - 0031-9007

VL - 123

JO - Physical Review Letters

JF - Physical Review Letters

IS - 23

M1 - 232001

ER -

Measurement of Charged Hadron Production in Z -Tagged Jets in Proton-Proton Collisions at s =8 TeV

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