Azimuthal anisotropy measurement of (multi)strange hadrons in Au plus Au collisions at root sNN=54.4 GeV

Result code in IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F68407700%3A21340%2F23%3A00368611" target="_blank" >RIV/68407700:21340/23:00368611 - isvavai.cz</a>
Result on the web
<a href="https://doi.org/10.1103/PhysRevC.107.024912" target="_blank" >https://doi.org/10.1103/PhysRevC.107.024912</a>
DOI - Digital Object Identifier
<a href="http://dx.doi.org/10.1103/PhysRevC.107.024912" target="_blank" >10.1103/PhysRevC.107.024912</a>

Result language
angličtina
Original language name
Azimuthal anisotropy measurement of (multi)strange hadrons in Au plus Au collisions at root sNN=54.4 GeV
Original language description
Azimuthal anisotropy of produced particles is one of the most important observables used to access the collective properties of the expanding medium created in relativistic heavy-ion collisions. In this paper, we present second (v2) and third (v3) order azimuthal anisotropies of KS0, 0, A, E, and Q at midrapidity (|y| < 1) in Au+Au collisions at root sNN = 54.4 GeV measured by the STAR detector. The v2 and v3 are measured as a function of transverse momentum and centrality. Their energy dependence is also studied. v3 is found to be more sensitive to the change in the center-of-mass energy than v2. Scaling by constituent quark number is found to hold for v2 within 10%. This observation could be evidence for the development of partonic collectivity in 54.4 GeV Au+Au collisions. Differences in v2 and v3 between baryons and antibaryons are presented, and ratios of v3/v3/2 2 are studied and motivated by hydrodynamical calculations. The ratio of v2 of phi mesons to that of antiprotons [v2(phi)/v2(p over line )] shows centrality dependence at low transverse momentum, presumably resulting from the larger effects from hadronic interactions on antiproton v2.
Czech name
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Czech description
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Type
J<sub>imp</sub> - Article in a specialist periodical, which is included in the Web of Science database
CEP classification
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OECD FORD branch
10303 - Particles and field physics

Project
Result was created during the realization of more than one project. More information in the Projects tab.
Continuities
P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)<br>S - Specificky vyzkum na vysokych skolach

Publication year
2023
Confidentiality
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

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