Observation of flow angle and flow magnitude fluctuations in Pb-Pb collisions at sNN =5.02 TeV at the CERN Large Hadron Collider

ALICE Collaboration

doi:10.1103/PhysRevC.107.L051901

Observation of flow angle and flow magnitude fluctuations in Pb-Pb collisions at sNN =5.02 TeV at the CERN Large Hadron Collider

ALICE Collaboration

Clermont-Auvergne University
Variable Energy Cyclotron Centre India
Nuclear Physics Institute ASCR
Fachbereich Informatik und Mathematik
Goethe University Frankfurt am Main
European Organization for Nuclear Research
INFN Sezione di Torino
INFN Sezione di Bologna
Department of Physics
Aligarh Muslim University
Korea Institute of Science and Technology Information
University of P.J. Šafárik
Research Division
GSI Helmholtzzentrum fur Schwerionenforschung
Central China Normal University
Instituto de Fisica
Universidad Nacional Autónoma de México
COMSATS University Islamabad
University of Houston
Department of Physics and Technology
University of Bergen
Sezione INFN di Cagliari
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)
Department of Physics
University of Oslo
Yale University
Bât. 104-108
INFN Sezione di Catania
Kangwon National University
University of Science and Technology of China

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

12 Citations (Scopus)

Abstract

This Letter reports on the first measurements of transverse momentum dependent flow angle ψn and flow magnitude vn fluctuations determined using new four-particle correlators. The measurements are performed for various centralities in Pb-Pb collisions at a center-of-mass energy per nucleon pair of sNN = 5.02 TeV with ALICE at the CERN Large Hadron Collider. Both flow angle and flow magnitude fluctuations are observed in the presented centrality ranges and are strongest in the most central collisions and for a transverse momentum pT>2GeV/c. Comparison with theoretical models, including iEBE-VISHNU, MUSIC, and AMPT, show that the measurements exhibit unique sensitivities to the initial state of heavy-ion collisions.

Original language	English
Article number	L051901
Journal	Physical Review C
Volume	107
Issue number	5
DOIs	https://doi.org/10.1103/PhysRevC.107.L051901
Publication status	Published - 1 May 2023
Externally published	Yes

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10.1103/PhysRevC.107.L051901

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@article{9e5d7874b934432aaf93d83a0323aead,

title = "Observation of flow angle and flow magnitude fluctuations in Pb-Pb collisions at sNN =5.02 TeV at the CERN Large Hadron Collider",

abstract = "This Letter reports on the first measurements of transverse momentum dependent flow angle ψn and flow magnitude vn fluctuations determined using new four-particle correlators. The measurements are performed for various centralities in Pb-Pb collisions at a center-of-mass energy per nucleon pair of sNN = 5.02 TeV with ALICE at the CERN Large Hadron Collider. Both flow angle and flow magnitude fluctuations are observed in the presented centrality ranges and are strongest in the most central collisions and for a transverse momentum pT>2GeV/c. Comparison with theoretical models, including iEBE-VISHNU, MUSIC, and AMPT, show that the measurements exhibit unique sensitivities to the initial state of heavy-ion collisions.",

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 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 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 C. Arata and S. Arcelli and M. Aresti 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 X. Bai and R. Bailhache and A. Shatat",

note = "Publisher Copyright: {\textcopyright} 2023 CERN. ",

year = "2023",

month = may,

day = "1",

doi = "10.1103/PhysRevC.107.L051901",

language = "English",

volume = "107",

journal = "Physical Review C",

issn = "2469-9985",

publisher = "American Physical Society",

number = "5",

}

TY - JOUR

T1 - Observation of flow angle and flow magnitude fluctuations in Pb-Pb collisions at sNN =5.02 TeV at the CERN Large Hadron Collider

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 - 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 - Andronic, A.

AU - Anguelov, V.

AU - Antinori, F.

AU - Antonioli, P.

AU - Anuj, C.

AU - Apadula, N.

AU - Aphecetche, L.

AU - Appelshäuser, H.

AU - Arata, C.

AU - Arcelli, S.

AU - Aresti, M.

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 - Bai, X.

AU - Bailhache, R.

AU - Shatat, A.

PY - 2023/5/1

Y1 - 2023/5/1

N2 - This Letter reports on the first measurements of transverse momentum dependent flow angle ψn and flow magnitude vn fluctuations determined using new four-particle correlators. The measurements are performed for various centralities in Pb-Pb collisions at a center-of-mass energy per nucleon pair of sNN = 5.02 TeV with ALICE at the CERN Large Hadron Collider. Both flow angle and flow magnitude fluctuations are observed in the presented centrality ranges and are strongest in the most central collisions and for a transverse momentum pT>2GeV/c. Comparison with theoretical models, including iEBE-VISHNU, MUSIC, and AMPT, show that the measurements exhibit unique sensitivities to the initial state of heavy-ion collisions.

AB - This Letter reports on the first measurements of transverse momentum dependent flow angle ψn and flow magnitude vn fluctuations determined using new four-particle correlators. The measurements are performed for various centralities in Pb-Pb collisions at a center-of-mass energy per nucleon pair of sNN = 5.02 TeV with ALICE at the CERN Large Hadron Collider. Both flow angle and flow magnitude fluctuations are observed in the presented centrality ranges and are strongest in the most central collisions and for a transverse momentum pT>2GeV/c. Comparison with theoretical models, including iEBE-VISHNU, MUSIC, and AMPT, show that the measurements exhibit unique sensitivities to the initial state of heavy-ion collisions.

UR - https://www.scopus.com/pages/publications/85162274234

U2 - 10.1103/PhysRevC.107.L051901

DO - 10.1103/PhysRevC.107.L051901

M3 - Article

AN - SCOPUS:85162274234

SN - 2469-9985

VL - 107

JO - Physical Review C

JF - Physical Review C

IS - 5

M1 - L051901

ER -

Observation of flow angle and flow magnitude fluctuations in Pb-Pb collisions at sNN =5.02 TeV at the CERN Large Hadron Collider

Abstract

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