Neutral to charged kaon yield fluctuations in Pb – Pb collisions at sNN=2.76 TeV

ALICE Collaboration

doi:10.1016/j.physletb.2022.137242

Neutral to charged kaon yield fluctuations in Pb – Pb collisions at s_NN=2.76 TeV

ALICE Collaboration

Variable Energy Cyclotron Centre India
Nuclear Physics Institute ASCR
Goethe University Frankfurt am Main
Lund University
European Organization for Nuclear Research
INFN Sezione di Torino
INFN Sezione di Bologna
Aligarh Muslim University
Korea Institute of Science and Technology Information
University of P.J. Šafárik
Indonesian Institute of Sciences
Kurchatov Institute
GSI Helmholtzzentrum fur Schwerionenforschung
Central China Normal University
Universidad Nacional Autónoma de México
COMSATS University Islamabad
University of Houston
University of Bergen
Sezione INFN di Cagliari
Saint Petersburg State University
Horia Hulubei National Institute of Physics and Nuclear Engineering
Science Park 105
University of Münster
University of Heidelberg
INFN
Ernest Orlando Lawrence Berkeley National Laboratory
Université de Nantes
University of Oslo
Yale University
Bât. 104-108
INFN Sezione di Catania
Kangwon National University
University of Science and Technology of China
Indian Institute of Technology Indore
University of Jammu
Université Paris-Saclay
Agh University of Science and Technology Faculty of Computer Science
Bose Institute
Università degli Studi di Catania
Technical University of Munich
University of Athens
Wigner Research Centre for Physics
Daresbury Laboratory
Clermont-Auvergne University
University of Liverpool
Joint Institute for Nuclear Research, Dubna
Indian Institute of Technology Bombay
Pontificia Universidad Católica del Perú
Niels Bohr Institutet
Université de Strasbourg
National Research Nuclear University MEPhI
Instituto de Ciencias Nucleares de la UNAM
Petersburg Nuclear Physics Institute (PNPI)
Institute of Space Sciences
Gauhati University
LNF-INFN
Czech Technical University in Prague
Institute for Nuclear Physics
The University of Texas at Austin
Moscow Institute of Physics and Technology
University of Pavia
INFN Sezione di Pavia
Oak Ridge National Laboratory
Inha University
University of Brescia
University of São Paulo
INFN Sezione di Bari
Politecnico di Bari
INFN Sezione di Trieste
Russian Federal Nuclear Center (VNIIEF)
Stefan Meyer Institute for Subatomic Physics (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
An OCC of Homi Bhabha National Institute
University of Campinas (UNICAMP)
University of Tsukuba
University of Cape Town
University of Birmingham
LTHE (UMR 5564 CNRS/IRD/Université de Grenoble)
Laboratory of Molecular Pathology
Federal University of ABC (UFABC)
Sezione di Roma
FIAS
Warsaw University of Technology
University of California, Berkeley
Centro de Aplicaciones Tecnológicas y Desarrollo Nuclear
Institute for Nuclear Research of the Russian Academy of Sciences
Panjab University
Technical University of Kosice
Comenius University
University of Zagreb
Kurchatov Institute
Chicago State University
National Nuclear Research Center
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
University Bonn
Western Norway University of Applied Sciences
CINVESTAV-IPN
Yonsei University
Creighton University
University of Jyväskylä
The 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 Centre for Nuclear Research (NCBJ)
University College of Southeast Norway
China Institute of Atomic Energy
Fudan University
University of Messina
Università di Foggia
Helsinki Institute of Physics
Chungbuk National University
Hiroshima University
Budker Institute of Nuclear Physics of the Siberian Branch of the RAS
University of Rajasthan
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

10 Citations (Scopus)

Résumé

We present the first measurement of event-by-event fluctuations in the kaon sector in Pb – Pb collisions at s_NN=2.76 TeV with the ALICE detector at the LHC. The robust fluctuation correlator ν_dyn is used to evaluate the magnitude of fluctuations of the relative yields of neutral and charged kaons, as well as the relative yields of charged kaons, as a function of collision centrality and selected kinematic ranges. While the correlator ν_dyn[K⁺,K⁻] exhibits a scaling approximately in inverse proportion of the charged particle multiplicity, ν_dyn[K_S⁰,K^±] features a significant deviation from such scaling. Within uncertainties, the value of ν_dyn[K_S⁰,K^±] is independent of the selected transverse momentum interval, while it exhibits a pseudorapidity dependence. The results are compared with HIJING, AMPT and EPOS–LHC predictions, and are further discussed in the context of the possible production of disoriented chiral condensates in central Pb – Pb collisions.

langue originale	Anglais
Numéro d'article	137242
journal	Physics Letters, Section B: Nuclear, Elementary Particle and High-Energy Physics
Volume	832
Les DOIs	https://doi.org/10.1016/j.physletb.2022.137242
état	Publié - 10 sept. 2022
Modification externe	Oui

Accès au document

10.1016/j.physletb.2022.137242

Autres fichiers et liens

Lien vers la publication dans Scopus

Contient cette citation

@article{2661c047d966473d87f594cac85f5012,

title = "Neutral to charged kaon yield fluctuations in Pb – Pb collisions at sNN=2.76 TeV",

abstract = "We present the first measurement of event-by-event fluctuations in the kaon sector in Pb – Pb collisions at sNN=2.76 TeV with the ALICE detector at the LHC. The robust fluctuation correlator νdyn is used to evaluate the magnitude of fluctuations of the relative yields of neutral and charged kaons, as well as the relative yields of charged kaons, as a function of collision centrality and selected kinematic ranges. While the correlator νdyn[K+,K−] exhibits a scaling approximately in inverse proportion of the charged particle multiplicity, νdyn[KS0,K±] features a significant deviation from such scaling. Within uncertainties, the value of νdyn[KS0,K±] is independent of the selected transverse momentum interval, while it exhibits a pseudorapidity dependence. The results are compared with HIJING, AMPT and EPOS–LHC predictions, and are further discussed in the context of the possible production of disoriented chiral condensates in central Pb – Pb 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 A. Shatat",

note = "Publisher Copyright: {\textcopyright} 2022 European Organization for Nuclear Research, ALICE",

year = "2022",

month = sep,

day = "10",

doi = "10.1016/j.physletb.2022.137242",

language = "English",

volume = "832",

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

issn = "0370-2693",

publisher = "Elsevier B.V.",

}

TY - JOUR

T1 - Neutral to charged kaon yield fluctuations in Pb – Pb collisions at sNN=2.76 TeV

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 - Shatat, A.

PY - 2022/9/10

Y1 - 2022/9/10

N2 - We present the first measurement of event-by-event fluctuations in the kaon sector in Pb – Pb collisions at sNN=2.76 TeV with the ALICE detector at the LHC. The robust fluctuation correlator νdyn is used to evaluate the magnitude of fluctuations of the relative yields of neutral and charged kaons, as well as the relative yields of charged kaons, as a function of collision centrality and selected kinematic ranges. While the correlator νdyn[K+,K−] exhibits a scaling approximately in inverse proportion of the charged particle multiplicity, νdyn[KS0,K±] features a significant deviation from such scaling. Within uncertainties, the value of νdyn[KS0,K±] is independent of the selected transverse momentum interval, while it exhibits a pseudorapidity dependence. The results are compared with HIJING, AMPT and EPOS–LHC predictions, and are further discussed in the context of the possible production of disoriented chiral condensates in central Pb – Pb collisions.

AB - We present the first measurement of event-by-event fluctuations in the kaon sector in Pb – Pb collisions at sNN=2.76 TeV with the ALICE detector at the LHC. The robust fluctuation correlator νdyn is used to evaluate the magnitude of fluctuations of the relative yields of neutral and charged kaons, as well as the relative yields of charged kaons, as a function of collision centrality and selected kinematic ranges. While the correlator νdyn[K+,K−] exhibits a scaling approximately in inverse proportion of the charged particle multiplicity, νdyn[KS0,K±] features a significant deviation from such scaling. Within uncertainties, the value of νdyn[KS0,K±] is independent of the selected transverse momentum interval, while it exhibits a pseudorapidity dependence. The results are compared with HIJING, AMPT and EPOS–LHC predictions, and are further discussed in the context of the possible production of disoriented chiral condensates in central Pb – Pb collisions.

UR - https://www.scopus.com/pages/publications/85132563537

U2 - 10.1016/j.physletb.2022.137242

DO - 10.1016/j.physletb.2022.137242

M3 - Article

AN - SCOPUS:85132563537

SN - 0370-2693

VL - 832

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 - 137242