Počet záznamů: 1
Pseudorapidity dependence of anisotropic flow and its decorrelations using long-range multiparticle correlations in Pb-Pb and Xe-Xe collisions
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SYSNO ASEP 0585196 Druh ASEP J - Článek v odborném periodiku Zařazení RIV J - Článek v odborném periodiku Poddruh J Článek ve WOS Název Pseudorapidity dependence of anisotropic flow and its decorrelations using long-range multiparticle correlations in Pb-Pb and Xe-Xe collisions Tvůrce(i) Acharya, S. (IN)
Adamová, Dagmar (UJF-V) RID, ORCID, SAI
Adler, A. (DE)
Aglieri Rinella, G. (CH)
Bielčík, J. (CZ)
Bielčíková, Jana (UJF-V) RID, ORCID, SAI
Broz, M. (CZ)
Contreras, J. G. (CZ)
Filová, V. (CZ)
Grecká, Ekaterina (UJF-V) ORCID
Grund, D. (CZ)
Herman, T. (CZ)
Isakov, Artem (UJF-V) ORCID, SAI
Khuntia, A. (CZ)
Kotliarov, Artem (UJF-V) ORCID, SAI
Krupová, D. M. (CZ)
Křížek, Filip (UJF-V) RID, ORCID, SAI
Kushpil, Svetlana (UJF-V) RID, ORCID, SAI
Šafařík, K. (CZ)
Torres, S. R. (CZ)
Závada, Petr (FZU-D) RID, ORCIDCelkový počet autorů 1055 Číslo článku 138477 Zdroj.dok. Physics Letters. B. - : Elsevier - ISSN 0370-2693
Roč. 850, MAR (2024)Poč.str. 17 s. Forma vydání Tištěná - P Jazyk dok. eng - angličtina Země vyd. NL - Nizozemsko Klíč. slova ALICE collaboration ; heavy ion collisions Obor OECD Nuclear physics Výzkumná infrastruktura CERN-CZ III - 90240 - Fyzikální ústav AV ČR, v. v. i. Způsob publikování Open access Institucionální podpora FZU-D - RVO:68378271 ; UJF-V - RVO:61389005 UT WOS 001186201000001 EID SCOPUS 85184479787 DOI 10.1016/j.physletb.2024.138477 Anotace he pseudorapidity dependence of elliptic (nu(2)), triangular (nu(3)), and quadrangular (nu(4)) flow coefficients of charged particles measured in Pb-Pb collisions at a centre-of-mass energy per nucleon pair of root s(NN) = 5.02 TeV and in Xe-Xe collisions at root s(NN) = 5.44 TeV with ALICE at the LHC are presented. The measurements are performed in the pseudorapidity range -3.5 < eta < 5 for various centrality intervals using two- and multi-particle cumulants with the subevent method. The flow probability density function (p.d.f.) is studied with the ratio of flow coefficient nu(2) calculated with four- and two-particle cumulant, and suggests that the variance of flow p.d.f. is independent of pseudorapidity. The decorrelation of the flow vector in the longitudinal direction is probed using two-particle correlations. The results measured with respect to different reference regions in pseudorapidity exhibit differences, argued to be a result of saturating decorrelation effect above a certain pseudorapidity separation, in contrast to previous publications which assign this observation to non-flow effects. The results are compared to 3 + 1 dimensional hydrodynamic and the AMPT transport model calculations. Neither of the models is able to simultaneously describe the pseudorapidity dependence of measurements of anisotropic flow and its fluctuations. The results presented in this work highlight shortcomings in our current understanding of initial conditions and subsequent system expansion in the longitudinal direction. Therefore, they provide input for its improvement. Pracoviště Ústav jaderné fyziky Kontakt Markéta Sommerová, sommerova@ujf.cas.cz, Tel.: 266 173 228 Rok sběru 2025 Elektronická adresa https://doi.org/10.1016/j.physletb.2024.138477
Počet záznamů: 1