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3D structure of anisotropic flow in small collision systems at energies available at the BNL Relativistic Heavy Ion Collider

Journal Article · · Physical Review. C
Here, we present (3 + 1)-dimensional [(3 + 1)D] dynamical simulations of asymmetric nuclear collisions at the BNL Relativistic Heavy Ion Collider (RHIC). Employing a dynamical initial state model coupled to (3 + 1)D viscous relativistic hydrodynamics, we explore the rapidity dependence of anisotropic flow in the RHIC small system scan at 200 GeV center-of-mass energy. We calibrate parameters to describe central 3He + Au collisions and make extrapolations to d + Au and p + Au collisions. Our calculations demonstrate that approximately 50% of the v3 (pT) difference between the measurements by the STAR and PHENIX Collaborations can be explained by the use of reference flow vectors from different rapidity regions. This emphasizes the importance of longitudinal flow decorrelation for anisotropic flow measurements in asymmetric nuclear collisions, and the need for (3 + 1)D simulations. We also present results for the beam energy dependence of particle spectra and anisotropic flow in d + Au collisions.
Research Organization:
Brookhaven National Laboratory (BNL), Upton, NY (United States); Wayne State University, Detroit, MI (United States)
Sponsoring Organization:
National Science Foundation (NSF); USDOE Office of Science (SC), Nuclear Physics (NP)
Grant/Contract Number:
SC0012704; SC0013460; SC0021969
OSTI ID:
1908370
Alternate ID(s):
OSTI ID: 1991199
Report Number(s):
BNL-223864-2023-JAAM
Journal Information:
Physical Review. C, Journal Name: Physical Review. C Journal Issue: 1 Vol. 107; ISSN 2469-9985
Publisher:
American Physical Society (APS)Copyright Statement
Country of Publication:
United States
Language:
English

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