Measurements of Chemical Potentials in Pb-Pb Collisions at sNN =5.02 TeV

(ALICE Collaboration)

doi:10.1103/PhysRevLett.133.092301

Measurements of Chemical Potentials in Pb-Pb Collisions at sNN =5.02 TeV

(ALICE Collaboration)

Clermont-Auvergne University
Nuclear Physics Institute ASCR
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
Goethe University Frankfurt am Main
INFN Sezione di Bari
Technical University of Munich
Benemerita Universidad Autonoma de Puebla
Horia Hulubei National Institute of Physics and Nuclear Engineering
University of Derby
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
University of Tokyo
INFN Sezione di Catania
Université Paris-Saclay
Sungkyunkwan University
Kangwon National University
University of Science and Technology of China
Indian Institute of Technology Indore
University of Jammu
Agh University of Science and Technology Faculty of Computer Science
Bose Institute
University of Athens
Gauhati University
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
Universidad Autonoma de Sinaloa
Institute of Space Sciences
LNF-INFN
Czech Technical University in Prague
The University of Texas at Austin
FIAS
University of Pavia
INFN Sezione di Pavia
Oak Ridge National Laboratory
Pusan National 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
Institute for Nuclear Physics
Sezione di Roma
University 'Politehnica' of Bucharest
University of Lyon
An OCC of Homi Bhabha National Institute
University of Campinas (UNICAMP)
Max-Planck-Institut für Physik
Inha University
Science Park 105
University of Tsukuba
ENEA Climate Modeling and Impacts
University of Birmingham
Laboratory of Molecular Pathology
Federal University of ABC (UFABC)
University of California, Berkeley
Centro de Aplicaciones Tecnológicas y Desarrollo Nuclear
University of Cape Town
Warsaw University of Technology
Panjab University
Technical University of Kosice
Comenius University
Hiroshima University
Politecnico di Torino
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
Yonsei University
University of Jyväskylä
University Bonn
Western Norway University of Applied Sciences
CINVESTAV-IPN
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
Yildiz Technical University
University of Zagreb
Zentrum für Technologie und Transfer (ZTT)
Chonbuk National University
Sejong University
California Polytechnic State University
Sofia University St. Kliment Ohridski
National Centre for Nuclear Research (NCBJ)
Università degli Studi di Catania
University College of Southeast Norway
Fudan University
Wroclaw University
University of Messina
Università di Foggia
Helsinki Institute of Physics
Chungbuk National University
China University of Geosciences
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

12 Citations (Scopus)

Résumé

This Letter presents the most precise measurement to date of the matter-antimatter imbalance at midrapidity in Pb-Pb collisions at a center-of-mass energy per nucleon pair sNN=5.02 TeV. Using the Statistical Hadronization framework, it is possible to obtain the value of the electric charge and baryon chemical potentials, μQ=-0.18±0.90 MeV and μB=0.71±0.45 MeV, with unprecedented precision. A centrality-differential study of the antiparticle-to-particle yield ratios of charged pions, protons, ω baryons, and light (hyper)nuclei is performed. These results indicate that the system created in Pb-Pb collisions at the LHC is on average baryon-free and electrically neutral at midrapidity.

langue originale	Anglais
Numéro d'article	092301
journal	Physical Review Letters
Volume	133
Numéro de publication	9
Les DOIs	https://doi.org/10.1103/PhysRevLett.133.092301
état	Publié - 30 août 2024
Modification externe	Oui

Accès au document

10.1103/PhysRevLett.133.092301

Autres fichiers et liens

Lien vers la publication dans Scopus

Contient cette citation

@article{1e83a5d958fa462eb16483941296f0a1,

title = "Measurements of Chemical Potentials in Pb-Pb Collisions at sNN =5.02 TeV",

abstract = "This Letter presents the most precise measurement to date of the matter-antimatter imbalance at midrapidity in Pb-Pb collisions at a center-of-mass energy per nucleon pair sNN=5.02 TeV. Using the Statistical Hadronization framework, it is possible to obtain the value of the electric charge and baryon chemical potentials, μQ=-0.18±0.90 MeV and μB=0.71±0.45 MeV, with unprecedented precision. A centrality-differential study of the antiparticle-to-particle yield ratios of charged pions, protons, ω baryons, and light (hyper)nuclei is performed. These results indicate that the system created in Pb-Pb collisions at the LHC is on average baryon-free and electrically neutral at midrapidity.",

author = "\{(ALICE Collaboration)\} and S. Acharya and D. Adamov{\'a} and \{Aglieri Rinella\}, G. and L. Aglietta 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 Altamura, \{A. R.\} and I. Altsybeev and Alvarado, \{J. R.\} and Anaam, \{M. N.\} and C. Andrei and N. Andreou and A. Andronic and E. Andronov 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 H. Baba and A. Badal{\`a} and A. Shatat",

note = "Publisher Copyright: {\textcopyright} 2024 CERN. ",

year = "2024",

month = aug,

day = "30",

doi = "10.1103/PhysRevLett.133.092301",

language = "English",

volume = "133",

journal = "Physical Review Letters",

issn = "0031-9007",

publisher = "American Physical Society",

number = "9",

}

TY - JOUR

T1 - Measurements of Chemical Potentials in Pb-Pb Collisions at sNN =5.02 TeV

AU - (ALICE Collaboration)

AU - Acharya, S.

AU - Adamová, D.

AU - Aglieri Rinella, G.

AU - Aglietta, L.

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 - Altamura, A. R.

AU - Altsybeev, I.

AU - Alvarado, J. R.

AU - Anaam, M. N.

AU - Andrei, C.

AU - Andreou, N.

AU - Andronic, A.

AU - Andronov, E.

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 - Baba, H.

AU - Badalà, A.

AU - Shatat, A.

PY - 2024/8/30

Y1 - 2024/8/30

N2 - This Letter presents the most precise measurement to date of the matter-antimatter imbalance at midrapidity in Pb-Pb collisions at a center-of-mass energy per nucleon pair sNN=5.02 TeV. Using the Statistical Hadronization framework, it is possible to obtain the value of the electric charge and baryon chemical potentials, μQ=-0.18±0.90 MeV and μB=0.71±0.45 MeV, with unprecedented precision. A centrality-differential study of the antiparticle-to-particle yield ratios of charged pions, protons, ω baryons, and light (hyper)nuclei is performed. These results indicate that the system created in Pb-Pb collisions at the LHC is on average baryon-free and electrically neutral at midrapidity.

AB - This Letter presents the most precise measurement to date of the matter-antimatter imbalance at midrapidity in Pb-Pb collisions at a center-of-mass energy per nucleon pair sNN=5.02 TeV. Using the Statistical Hadronization framework, it is possible to obtain the value of the electric charge and baryon chemical potentials, μQ=-0.18±0.90 MeV and μB=0.71±0.45 MeV, with unprecedented precision. A centrality-differential study of the antiparticle-to-particle yield ratios of charged pions, protons, ω baryons, and light (hyper)nuclei is performed. These results indicate that the system created in Pb-Pb collisions at the LHC is on average baryon-free and electrically neutral at midrapidity.

UR - https://www.scopus.com/pages/publications/85203129208

U2 - 10.1103/PhysRevLett.133.092301

DO - 10.1103/PhysRevLett.133.092301

M3 - Article

C2 - 39270180

AN - SCOPUS:85203129208

SN - 0031-9007

VL - 133

JO - Physical Review Letters

JF - Physical Review Letters

IS - 9

M1 - 092301

ER -

Measurements of Chemical Potentials in Pb-Pb Collisions at sNN =5.02 TeV

Résumé

Accès au document

Autres fichiers et liens

Empreinte digitale

Contient cette citation