Measurement of the radius dependence of charged-particle jet suppression in Pb–Pb collisions at sNN=5.02TeV

ALICE Collaboration

doi:10.1016/j.physletb.2023.138412

Measurement of the radius dependence of charged-particle jet suppression in Pb–Pb collisions at s_NN=5.02TeV

ALICE Collaboration

Clermont-Auvergne University
Nuclear Physics Institute ASCR
Goethe University Frankfurt am Main
European Organization for Nuclear Research
INFN Sezione di Torino
INFN Sezione di Bologna
Variable Energy Cyclotron Centre India
Aligarh Muslim University
Korea Institute of Science and Technology Information
University of P.J. Šafárik
GSI Helmholtzzentrum fur Schwerionenforschung
Central China Normal University
Universidad Nacional Autónoma de México
University of Houston
University of Bergen
Sezione INFN di Cagliari
Benemerita Universidad Autonoma de Puebla
Horia Hulubei National Institute of Physics and Nuclear Engineering
University of Münster
University of Heidelberg
INFN
Ernest Orlando Lawrence Berkeley National Laboratory
Université de Nantes
LTHE (UMR 5564 CNRS/IRD/Université de Grenoble)
University of São Paulo
University of Oslo
Yale University
INFN Sezione di Catania
Sungkyunkwan University
Kangwon National University
University of Science and Technology of China
Université Paris-Saclay
Indian Institute of Technology Indore
Agh University of Science and Technology Faculty of Computer Science
Bose Institute
University of Jammu
Università degli Studi di Catania
INFN Sezione di Bari
Technical University of Munich
University of Athens
Wigner Research Centre for Physics
Daresbury Laboratory
University of Liverpool
Lund University
Indian Institute of Technology Bombay
Pontificia Universidad Católica del Perú
Niels Bohr Institutet
Université de Strasbourg
Institute of Space Sciences
Gauhati University
LNF-INFN
Czech Technical University in Prague
Institute for Nuclear Physics
The University of Texas at Austin
FIAS
University of Pavia
INFN Sezione di Pavia
Oak Ridge National Laboratory
Inha University
University of Brescia
Politecnico di Bari
INFN Sezione di Trieste
Stefan Meyer Institute for Subatomic Physics (SMI)
National Research Foundation
University of the Witwatersrand, Johannesburg
Universidad Autonoma de Sinaloa
University 'Politehnica' of Bucharest
University of Lyon
An OCC of Homi Bhabha National Institute
University of Campinas (UNICAMP)
Science Park 105
University of Tsukuba
University of Birmingham
Laboratory of Molecular Pathology
Federal University of ABC (UFABC)
Sezione di Roma
Warsaw University of Technology
University of California, Berkeley
Centro de Aplicaciones Tecnológicas y Desarrollo Nuclear
University of Cape Town
Panjab University
Technical University of Kosice
Comenius University
University of Zagreb
Saga University
Chicago State University
University of Kansas
Universidade Federal do Rio Grande do Sul
University of Tennessee
Nagasaki Institute of Applied Science
Wayne State University
Faculty of Electrical Engineering, Mechanical Engineering and Naval Architecture, University of Split
Universiteit Utrecht
Yerevan Physics Institute
University of Tokyo
Yonsei University
University Bonn
Western Norway University of Applied Sciences
CINVESTAV-IPN
University of Jyväskylä
The Ohio State University
COMSATS University Islamabad
National Research and Innovation Agency - BRIN
China Institute of Atomic Energy
Instituto de Ciencias Nucleares de la UNAM
Suranaree University of Technology
Institute of Experimental Physics Slovak Academy of Sciences
KTO Karatay University
Zentrum für Technologie und Transfer (ZTT)
Pusan National University
Chonbuk National University
Sejong University
Hiroshima University
California Polytechnic State University, San Luis Obispo
Sofia University St. Kliment Ohridski
National Centre for Nuclear Research (NCBJ)
University College of Southeast Norway
Fudan University
University of Messina
Università di Foggia
Helsinki Institute of Physics
Chungbuk National University
Creighton University
National Nuclear Research Center
University of Tübingen
Nara Women's University
Bogolyubov Institute for Theoretical Physics Nasu
Institute of Physics of the Czech Academy of Sciences

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

33 Citations (Scopus)

Résumé

The ALICE Collaboration reports a differential measurement of inclusive jet suppression using pp and Pb–Pb collision data at a center-of-mass energy per nucleon–nucleon collision s_NN=5.02 TeV. Charged-particle jets are reconstructed using the anti-k_T algorithm with resolution parameters R=0.2, 0.3, 0.4, 0.5, and 0.6 in pp collisions and R=0.2, 0.4, 0.6 in central (0–10%), semi-central (30–50%), and peripheral (60–80%) Pb–Pb collisions. A novel approach based on machine learning is employed to mitigate the influence of jet background. This enables measurements of inclusive jet suppression in new regions of phase space, including down to the lowest jet p_T≥40 GeV/c at R=0.6 in central Pb–Pb collisions. This is an important step for discriminating different models of jet quenching in the quark–gluon plasma. The transverse momentum spectra, nuclear modification factors, derived cross section, and nuclear modification factor ratios for different jet resolution parameters of charged-particle jets are presented and compared to model predictions. A mild dependence of the nuclear modification factor ratios on collision centrality and resolution parameter is observed. The results are compared to a variety of jet-quenching models with varying levels of agreement.

langue originale	Anglais
Numéro d'article	138412
journal	Physics Letters, Section B: Nuclear, Elementary Particle and High-Energy Physics
Volume	849
Les DOIs	https://doi.org/10.1016/j.physletb.2023.138412
état	Publié - 1 févr. 2024
Modification externe	Oui

Accès au document

10.1016/j.physletb.2023.138412

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Contient cette citation

@article{b2e6da2f182c418e8f353033b5cc8af4,

title = "Measurement of the radius dependence of charged-particle jet suppression in Pb{\textendash}Pb collisions at sNN=5.02TeV",

abstract = "The ALICE Collaboration reports a differential measurement of inclusive jet suppression using pp and Pb{\textendash}Pb collision data at a center-of-mass energy per nucleon{\textendash}nucleon collision sNN=5.02 TeV. Charged-particle jets are reconstructed using the anti-kT algorithm with resolution parameters R=0.2, 0.3, 0.4, 0.5, and 0.6 in pp collisions and R=0.2, 0.4, 0.6 in central (0{\textendash}10\%), semi-central (30{\textendash}50\%), and peripheral (60{\textendash}80\%) Pb{\textendash}Pb collisions. A novel approach based on machine learning is employed to mitigate the influence of jet background. This enables measurements of inclusive jet suppression in new regions of phase space, including down to the lowest jet pT≥40 GeV/c at R=0.6 in central Pb{\textendash}Pb collisions. This is an important step for discriminating different models of jet quenching in the quark{\textendash}gluon plasma. The transverse momentum spectra, nuclear modification factors, derived cross section, and nuclear modification factor ratios for different jet resolution parameters of charged-particle jets are presented and compared to model predictions. A mild dependence of the nuclear modification factor ratios on collision centrality and resolution parameter is observed. The results are compared to a variety of jet-quenching models with varying levels of agreement.",

author = "\{ALICE Collaboration\} and S. Acharya and D. Adamov{\'a} and A. Adler and \{Aglieri Rinella\}, G. and M. Agnello and N. Agrawal and Z. Ahammed and S. Ahmad and Ahn, \{S. U.\} and I. Ahuja and A. Akindinov and M. Al-Turany and D. Aleksandrov and B. Alessandro and Alfanda, \{H. M.\} and \{Alfaro Molina\}, R. and B. Ali and A. Alici and N. Alizadehvandchali and A. Alkin and J. Alme and G. Alocco and T. Alt and I. Altsybeev and Alvarado, \{J. R.\} and Anaam, \{M. N.\} and C. Andrei and A. Andronic and V. Anguelov and F. Antinori and P. Antonioli and N. Apadula and L. Aphecetche and H. Appelsh{\"a}user and C. Arata and S. Arcelli and M. Aresti and R. Arnaldi and Arneiro, \{J. G.M.C.A.\} and Arsene, \{I. C.\} and M. Arslandok and A. Augustinus and R. Averbeck and Azmi, \{M. D.\} and A. Badal{\`a} and J. Bae and Baek, \{Y. W.\} and X. Bai and R. Bailhache and A. Shatat",

note = "Publisher Copyright: {\textcopyright} 2023 The Author(s)",

year = "2024",

month = feb,

day = "1",

doi = "10.1016/j.physletb.2023.138412",

language = "English",

volume = "849",

journal = "Physics Letters, Section B: Nuclear, Elementary Particle and High-Energy Physics",

issn = "0370-2693",

publisher = "Elsevier B.V.",

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TY - JOUR

T1 - Measurement of the radius dependence of charged-particle jet suppression in Pb–Pb collisions at sNN=5.02TeV

AU - ALICE Collaboration

AU - Acharya, S.

AU - Adamová, D.

AU - Adler, A.

AU - Aglieri Rinella, G.

AU - Agnello, M.

AU - Agrawal, N.

AU - Ahammed, Z.

AU - Ahmad, S.

AU - Ahn, S. U.

AU - Ahuja, I.

AU - Akindinov, A.

AU - Al-Turany, M.

AU - Aleksandrov, D.

AU - Alessandro, B.

AU - Alfanda, H. M.

AU - Alfaro Molina, R.

AU - Ali, B.

AU - Alici, A.

AU - Alizadehvandchali, N.

AU - Alkin, A.

AU - Alme, J.

AU - Alocco, G.

AU - Alt, T.

AU - Altsybeev, I.

AU - Alvarado, J. R.

AU - Anaam, M. N.

AU - Andrei, C.

AU - Andronic, A.

AU - Anguelov, V.

AU - Antinori, F.

AU - Antonioli, P.

AU - Apadula, N.

AU - Aphecetche, L.

AU - Appelshäuser, H.

AU - Arata, C.

AU - Arcelli, S.

AU - Aresti, M.

AU - Arnaldi, R.

AU - Arneiro, J. G.M.C.A.

AU - Arsene, I. C.

AU - Arslandok, M.

AU - Augustinus, A.

AU - Averbeck, R.

AU - Azmi, M. D.

AU - Badalà, A.

AU - Bae, J.

AU - Baek, Y. W.

AU - Bai, X.

AU - Bailhache, R.

AU - Shatat, A.

PY - 2024/2/1

Y1 - 2024/2/1

N2 - The ALICE Collaboration reports a differential measurement of inclusive jet suppression using pp and Pb–Pb collision data at a center-of-mass energy per nucleon–nucleon collision sNN=5.02 TeV. Charged-particle jets are reconstructed using the anti-kT algorithm with resolution parameters R=0.2, 0.3, 0.4, 0.5, and 0.6 in pp collisions and R=0.2, 0.4, 0.6 in central (0–10%), semi-central (30–50%), and peripheral (60–80%) Pb–Pb collisions. A novel approach based on machine learning is employed to mitigate the influence of jet background. This enables measurements of inclusive jet suppression in new regions of phase space, including down to the lowest jet pT≥40 GeV/c at R=0.6 in central Pb–Pb collisions. This is an important step for discriminating different models of jet quenching in the quark–gluon plasma. The transverse momentum spectra, nuclear modification factors, derived cross section, and nuclear modification factor ratios for different jet resolution parameters of charged-particle jets are presented and compared to model predictions. A mild dependence of the nuclear modification factor ratios on collision centrality and resolution parameter is observed. The results are compared to a variety of jet-quenching models with varying levels of agreement.

AB - The ALICE Collaboration reports a differential measurement of inclusive jet suppression using pp and Pb–Pb collision data at a center-of-mass energy per nucleon–nucleon collision sNN=5.02 TeV. Charged-particle jets are reconstructed using the anti-kT algorithm with resolution parameters R=0.2, 0.3, 0.4, 0.5, and 0.6 in pp collisions and R=0.2, 0.4, 0.6 in central (0–10%), semi-central (30–50%), and peripheral (60–80%) Pb–Pb collisions. A novel approach based on machine learning is employed to mitigate the influence of jet background. This enables measurements of inclusive jet suppression in new regions of phase space, including down to the lowest jet pT≥40 GeV/c at R=0.6 in central Pb–Pb collisions. This is an important step for discriminating different models of jet quenching in the quark–gluon plasma. The transverse momentum spectra, nuclear modification factors, derived cross section, and nuclear modification factor ratios for different jet resolution parameters of charged-particle jets are presented and compared to model predictions. A mild dependence of the nuclear modification factor ratios on collision centrality and resolution parameter is observed. The results are compared to a variety of jet-quenching models with varying levels of agreement.

UR - https://www.scopus.com/pages/publications/85183087545

U2 - 10.1016/j.physletb.2023.138412

DO - 10.1016/j.physletb.2023.138412

M3 - Article

AN - SCOPUS:85183087545

SN - 0370-2693

VL - 849

JO - Physics Letters, Section B: Nuclear, Elementary Particle and High-Energy Physics

JF - Physics Letters, Section B: Nuclear, Elementary Particle and High-Energy Physics

M1 - 138412