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Beam Energy Dependence of Fifth- and Sixth-Order Net-Proton Number Fluctuations in Au plus Au Collisions at RHIC

The result's identifiers

  • Result code in IS VaVaI

    <a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F68407700%3A21340%2F23%3A00367690" target="_blank" >RIV/68407700:21340/23:00367690 - isvavai.cz</a>

  • Result on the web

    <a href="https://doi.org/10.1103/PhysRevLett.130.082301" target="_blank" >https://doi.org/10.1103/PhysRevLett.130.082301</a>

  • DOI - Digital Object Identifier

    <a href="http://dx.doi.org/10.1103/PhysRevLett.130.082301" target="_blank" >10.1103/PhysRevLett.130.082301</a>

Alternative languages

  • Result language

    angličtina

  • Original language name

    Beam Energy Dependence of Fifth- and Sixth-Order Net-Proton Number Fluctuations in Au plus Au Collisions at RHIC

  • Original language description

    We report the beam energy and collision centrality dependence of fifth and sixth order cumulants (C-5, C-6) and factorial cumulants (kappa(5),kappa(6)) of net-proton and proton number distributions, from center-of mass energy ( root(NN)-N-s) 3 GeV to 200 GeV Au thorn Au collisions at RHIC. Cumulant ratios of net-proton (taken as proxy for net-baryon) We report the beam energy and collision centrality dependence of fifth and sixth order cumulants (C-5, C-6) and factorial cumulants (kappa(5), kappa(6)) of net-proton and proton number distributions, from center-of-mass energy (root(NN)-N-s) 3 GeV to 200 GeV Au thorn Au collisions at RHIC. Cumulant ratios of net-proton (taken sNN as proxy for net-baryon) distributions generally follow the hierarchy expected from QCD thermodynamics, except for the case of collisions at 3 GeV. The measured values of C-6/C-2 for 0%-40% centrality collisions show progressively negative trend with decreasing energy, while it is positive for the lowest energy studied. These observed negative signs are consistent with QCD calculations (for baryon chemical potential, mu(B) <= 110 MeV) which contains the crossover transition range. In addition, for energies above 7.7 GeV, the measured proton kappa(n), within uncertainties, does not support the two-component (Poisson thorn binomial) shape of proton number distributions that would be expected from a first-order phase transition. Taken in combination, the hyperorder proton number fluctuations suggest that the structure of QCD matter at high baryon density, mu(B) similar to 750 MeV at root(NN)-N-s = 3 GeV is starkly different from those at vanishing sNN mu(B) similar to 24 MeV at root(NN)-N-s = 200 GeV and higher collision energies. sNN

  • Czech name

  • Czech description

Classification

  • Type

    J<sub>imp</sub> - Article in a specialist periodical, which is included in the Web of Science database

  • CEP classification

  • OECD FORD branch

    10301 - Atomic, molecular and chemical physics (physics of atoms and molecules including collision, interaction with radiation, magnetic resonances, Mössbauer effect)

Result continuities

  • Project

    <a href="/en/project/LM2018109" target="_blank" >LM2018109: Brookhaven National Laboratory - the participation of the Czech Republic</a><br>

  • Continuities

    P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)

Others

  • Publication year

    2023

  • Confidentiality

    S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

Data specific for result type

  • Name of the periodical

    Physical Review Letters

  • ISSN

    0031-9007

  • e-ISSN

    1079-7114

  • Volume of the periodical

    130

  • Issue of the periodical within the volume

    8

  • Country of publishing house

    US - UNITED STATES

  • Number of pages

    8

  • Pages from-to

  • UT code for WoS article

    000982318800009

  • EID of the result in the Scopus database

    2-s2.0-85149659741