Refine
Year of publication
Language
- English (151)
Has Fulltext
- yes (151)
Is part of the Bibliography
- no (151)
Keywords
- Quark-Gluon Plasma (4)
- Hadron-Hadron Scattering (3)
- Jets and Jet Substructure (3)
- Elastic scattering (2)
- Experimental nuclear physics (2)
- Experimental particle physics (2)
- ALICE detector (1)
- Anti-nuclei (1)
- B-slope (1)
- Boosted Jets (1)
Institute
- Frankfurt Institute for Advanced Studies (FIAS) (151) (remove)
Azimuthal anisotropy measurement of (multi-)strange hadrons in Au+Au collisions at √sNN = 54.4 GeV
(2023)
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 K0S, ϕ, Λ, Ξ and Ω at mid-rapidity (|y|<1) in Au+Au collisions at 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 anti-baryons are presented, and ratios of v3/v3/22 are studied and motivated by hydrodynamical calculations. The ratio of v2 of ϕ mesons to that of anti-protons (v2(ϕ)/v2(p¯)) shows centrality dependence at low transverse momentum, presumably resulting from the larger effects from hadronic interactions on anti-proton v2.