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Title: Collision-System and Beam-Energy Dependence of Anisotropic Flow Fluctuations

Journal Article · · Physical Review Letters
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Here, elliptic flow measurements from two-, four- and six-particle correlations are used to investigate flow fluctuations in collisions of U+U at $$\sqrt{s_{NN}}$$ = 193 GeV, Cu+Au at $$\sqrt{s_{NN}}$$ = 200 GeV and Au+Au spanning the range $$\sqrt{s_{NN}}$$ = 11.5 - 200 GeV. The measurements show a strong dependence of the flow fluctuations on collision centrality, a modest dependence on system size, and very little if any, dependence on particle species and beam energy. The results, when compared to similar LHC measurements, viscous hydrodynamic calculations, and Glauber model eccentricities, indicate that initial-state-driven fluctuations predominate the flow fluctuations generated in the collisions studied.

Research Organization:
Univ. of Illinois, Chicago, IL (United States); Brookhaven National Laboratory (BNL), Upton, NY (United States); Texas A & M Univ., College Station, TX (United States); Argonne National Laboratory (ANL), Argonne, IL (United States)
Sponsoring Organization:
USDOE Office of Science (SC), Nuclear Physics (NP)
Contributing Organization:
STAR Collaboration
Grant/Contract Number:
FG02-94ER40865; SC0012704; SC0017982; AC02-06CH11357
OSTI ID:
1972847
Alternate ID(s):
OSTI ID: 1899908; OSTI ID: 1903292; OSTI ID: 1990043
Report Number(s):
BNL-223722-2022-JAAM; TRN: US2313839
Journal Information:
Physical Review Letters, Vol. 129, Issue 25; ISSN 0031-9007
Publisher:
American Physical Society (APS)Copyright Statement
Country of Publication:
United States
Language:
English

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