Multiplicity dependence of charged-particle jet production in pp collisions at √s=13TeV

ALICE Collaboration

doi:10.1140/epjc/s10052-022-10405-x

Multiplicity dependence of charged-particle jet production in pp collisions at √s=13TeV

ALICE Collaboration

Chair of Experimentalphysik - Dense and Strange Hadronic Matter

European Organization for Nuclear Research
VECC Kolkata
Nuclear Physics Institute of the Cas
Johann Wolfgang Goethe University
Lund University
INFN Sez. di Torino
Istituto Nazionale di Fisica Nucleare, Sezione di Bologna
Aligarh Muslim University
Korea Institute of Science and Technology Information
P. J. Safarik University
Indonesian Institute of Sciences
National Research Centre "Kurchatov Institute"
GSI Helmholtz Center
Central China Normal University
Universidad Nacional Autónoma de México
COMSATS University Islamabad
University of Houston
University of Bergen
Sezione INFN di Cagliari
University of St. Petersburg
Horia Hulubei National Institute of Physics and Nuclear Engineering
Science Park 105
University of Münster
Heidelberg University
Dipartimento di Fisica 'G. Galilei' and INFN
Lawrence Berkeley National Laboratory
l'institut du thorax
University of Oslo
Yale University
Institut de Physique Nucléaire
Laboratori Nazionali Del Sud
Gangneung-Wonju National University
University of Science and Technology of China
Indian Institute of Technology Indore
University of Jammu
Université Paris-Saclay Centre d’ Études de Saclay (CEA)
Univ of Mining and Metallurgy
Bose Institute
Technical University of Munich
University of Athens
Wigner Research Centre for Physics
STFC Daresbury Laboratory
LAIC, Université d'Auvergne
University of Liverpool
Joint Inst. for Nuclear Research
The Indian Institute of Technology Bombay
Pontifical Catholic University of Peru San Miguel
Niels Bohr Institutet
Universite de Strasbourg
National Research Nuclear University MEPhI
Instituto de Ciencias Nucleares de la UNAM
Petersburg Nuclear Phys. Inst.
Institute of Space Sciences
Gauhati University
INFN, Laboratori Nazionali Di Frascati
Czech Technical University in Prague
Henryk Niewodniczanski Institute of Nuclear Physics Polish Academy of Sciences
University of Texas at Austin
Moscow Institute of Physics and Technology
University of Pavia
Istituto Nazionale di Fisica Nucleare, Sezione di Pavia
Oak Ridge National Laboratory
Inha University
University of Brescia
University of São Paulo
Istituto Nazionale di Fisica Nucleare, Sezione di Bari
Politecnico di Bari
INFN- Sezione di Trieste
Russian Federal Nuclear Center (VNIIEF)
Stefan Meyer Institut für Subatomare Physik (SMI)
National Research Foundation
University of the Witwatersrand, Johannesburg
University of Kansas
Universidad Autonoma de Sinaloa
Benemerita Universidad Autonoma de Puebla
University Politehnica of Bucharest
University of Lyon
Homi Bhabha National Institute
University of Campinas
Tsukuba University
Energy and Sustainable Economic Development (ENEA)
University of Cape Town
University of Birmingham
Politecnico di Torino
University of Grenoble Alpes
University of Eastern Piedmont
UFABC
Sezione INFN di Roma La Sapienza
Frankfurt Institute for Advanced Studies
Warsaw Institute of Technology
University of California at Berkeley
Centro de Aplicaciones Tecnológicas y Desarrollo Nuclear
Institute for Nuclear Research of the Russian Academy of Sciences
Panjab University
Technical University of Košice
Comenius University
University of Zagreb
Institute for High Energy Physics (IHEP)
Chicago State University
National Nuclear Research Center
UFRGS
University of Tennessee
Nagasaki Institute of Applied Science
Wayne State University
University of Split
the University of Utrecht
A.I. Alikhanyan National Science Laboratory (YerPhi)
University of Tokyo
University of Bonn
Western Norway University of Applied Sciences
CINVESTAV
Yonsei University
Creighton University
University of Jyväskylä
Ohio State University
Suranaree University of Technology
Institute of Experimental Physics Slovak Academy of Sciences
KTO Karatay University
Zentrum für Technologietransfer und Telekommunikation (ZTT)
Pusan National University
Chonbuk National University
Sejong University
California Polytechnic State University, San Luis Obispo
National Center for Nuclear Research (NCBJ)
University of South-Eastern Norway
China Institute of Atomic Energy
Fudan University
Moscow State University
Multimedia and Distributed Systems Laboratory
University of Foggia
University of Helsinki and Helsinki Institute of Physics
Chungbuk National University
Hiroshima University
Budker Institute of Nuclear Physics (SB RAS)
University of Rajasthan
Wrocław University
University of Tübingen
Nara Women's University
Bogolyubov Institute for Theoretical Physics Nasu
Institute of Physics of the Czech Academy of Sciences

Research output: Contribution to journal › Article › peer-review

10 Scopus citations

Abstract

The multiplicity dependence of jet production in pp collisions at the centre-of-mass energy of s=13TeV is studied for the first time. Jets are reconstructed from charged particles using the anti-k_T algorithm with resolution parameters R varying from 0.2 to 0.7. The jets are measured in the pseudorapidity range | η_jet| < 0.9 - R and in the transverse momentum range 5<pT,jetch<140GeV/c. The multiplicity intervals are categorised by the ALICE forward detector V0. The p_T differential cross section of charged-particle jets are compared to leading order (LO) and next-to-leading order (NLO) perturbative quantum chromodynamics (pQCD) calculations. It is found that the data are better described by the NLO calculation, although the NLO prediction overestimates the jet cross section below 20GeV/c. The cross section ratios for different R are also measured and compared to model calculations. These measurements provide insights into the angular dependence of jet fragmentation. The jet yield increases with increasing self-normalised charged-particle multiplicity. This increase shows only a weak dependence on jet transverse momentum and resolution parameter at the highest multiplicity. While such behaviour is qualitatively described by the present version of PYTHIA, quantitative description may require implementing new mechanisms for multi-particle production in hadronic collisions.

Original language	English
Article number	514
Journal	European Physical Journal C
Volume	82
Issue number	6
DOIs	https://doi.org/10.1140/epjc/s10052-022-10405-x
State	Published - Jun 2022

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@article{108e7e940b104203b2dce21ac0937890,

title = "Multiplicity dependence of charged-particle jet production in pp collisions at √s=13TeV",

abstract = "The multiplicity dependence of jet production in pp collisions at the centre-of-mass energy of s=13TeV is studied for the first time. Jets are reconstructed from charged particles using the anti-kT algorithm with resolution parameters R varying from 0.2 to 0.7. The jets are measured in the pseudorapidity range | ηjet| < 0.9 - R and in the transverse momentum range 5T differential cross section of charged-particle jets are compared to leading order (LO) and next-to-leading order (NLO) perturbative quantum chromodynamics (pQCD) calculations. It is found that the data are better described by the NLO calculation, although the NLO prediction overestimates the jet cross section below 20GeV/c. The cross section ratios for different R are also measured and compared to model calculations. These measurements provide insights into the angular dependence of jet fragmentation. The jet yield increases with increasing self-normalised charged-particle multiplicity. This increase shows only a weak dependence on jet transverse momentum and resolution parameter at the highest multiplicity. While such behaviour is qualitatively described by the present version of PYTHIA, quantitative description may require implementing new mechanisms for multi-particle production in hadronic collisions.",

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

note = "Publisher Copyright: {\textcopyright} 2022, The Author(s).",

year = "2022",

month = jun,

doi = "10.1140/epjc/s10052-022-10405-x",

language = "English",

volume = "82",

journal = "European Physical Journal C",

issn = "1434-6044",

publisher = "Springer Nature",

number = "6",

}

TY - JOUR

T1 - Multiplicity dependence of charged-particle jet production in pp collisions at √s=13TeV

AU - ALICE Collaboration

AU - Acharya, S.

AU - Adamová, D.

AU - Adler, A.

AU - Adolfsson, J.

AU - Aglieri Rinella, G.

AU - Agnello, M.

AU - Agrawal, N.

AU - Ahammed, Z.

AU - Ahmad, S.

AU - Ahn, S. U.

AU - Ahuja, I.

AU - Akbar, Z.

AU - Akindinov, A.

AU - Al-Turany, M.

AU - Alam, S. N.

AU - Aleksandrov, D.

AU - Alessandro, B.

AU - Alfanda, H. M.

AU - Alfaro Molina, R.

AU - Ali, B.

AU - Ali, Y.

AU - Alici, A.

AU - Alizadehvandchali, N.

AU - Alkin, A.

AU - Alme, J.

AU - Alocco, G.

AU - Alt, T.

AU - Altsybeev, I.

AU - Anaam, M. N.

AU - Andrei, C.

AU - Andreou, D.

AU - Andronic, A.

AU - Anguelov, V.

AU - Antinori, F.

AU - Antonioli, P.

AU - Anuj, C.

AU - Apadula, N.

AU - Aphecetche, L.

AU - Appelshäuser, H.

AU - Arcelli, S.

AU - Arnaldi, R.

AU - Arsene, I. C.

AU - Arslandok, M.

AU - Augustinus, A.

AU - Averbeck, R.

AU - Aziz, S.

AU - Azmi, M. D.

AU - Badalà, A.

AU - Baek, Y. W.

AU - Fabbietti, L.

PY - 2022/6

Y1 - 2022/6

N2 - The multiplicity dependence of jet production in pp collisions at the centre-of-mass energy of s=13TeV is studied for the first time. Jets are reconstructed from charged particles using the anti-kT algorithm with resolution parameters R varying from 0.2 to 0.7. The jets are measured in the pseudorapidity range | ηjet| < 0.9 - R and in the transverse momentum range 5T differential cross section of charged-particle jets are compared to leading order (LO) and next-to-leading order (NLO) perturbative quantum chromodynamics (pQCD) calculations. It is found that the data are better described by the NLO calculation, although the NLO prediction overestimates the jet cross section below 20GeV/c. The cross section ratios for different R are also measured and compared to model calculations. These measurements provide insights into the angular dependence of jet fragmentation. The jet yield increases with increasing self-normalised charged-particle multiplicity. This increase shows only a weak dependence on jet transverse momentum and resolution parameter at the highest multiplicity. While such behaviour is qualitatively described by the present version of PYTHIA, quantitative description may require implementing new mechanisms for multi-particle production in hadronic collisions.

AB - The multiplicity dependence of jet production in pp collisions at the centre-of-mass energy of s=13TeV is studied for the first time. Jets are reconstructed from charged particles using the anti-kT algorithm with resolution parameters R varying from 0.2 to 0.7. The jets are measured in the pseudorapidity range | ηjet| < 0.9 - R and in the transverse momentum range 5T differential cross section of charged-particle jets are compared to leading order (LO) and next-to-leading order (NLO) perturbative quantum chromodynamics (pQCD) calculations. It is found that the data are better described by the NLO calculation, although the NLO prediction overestimates the jet cross section below 20GeV/c. The cross section ratios for different R are also measured and compared to model calculations. These measurements provide insights into the angular dependence of jet fragmentation. The jet yield increases with increasing self-normalised charged-particle multiplicity. This increase shows only a weak dependence on jet transverse momentum and resolution parameter at the highest multiplicity. While such behaviour is qualitatively described by the present version of PYTHIA, quantitative description may require implementing new mechanisms for multi-particle production in hadronic collisions.

UR - https://www.scopus.com/pages/publications/85134078179

U2 - 10.1140/epjc/s10052-022-10405-x

DO - 10.1140/epjc/s10052-022-10405-x

M3 - Article

AN - SCOPUS:85134078179

SN - 1434-6044

VL - 82

JO - European Physical Journal C

JF - European Physical Journal C

IS - 6

M1 - 514

ER -

Multiplicity dependence of charged-particle jet production in pp collisions at √s=13TeV

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