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Title: Measurements of the Elliptic and Triangular Azimuthal Anisotropies in Central He 3 + Au , d + Au and p + Au Collisions at s N N = 200 GeV

Journal Article · · Physical Review Letters
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The elliptic (v2) and triangular (v3) azimuthal anisotropy coefficients in central 3He + Au, d + Au, and p + Au collisions at $$\sqrt{S_{NN}}$$ = 200 GeV are measured as a function of transverse momentum (PT) at midrapidity (|n| < 0.9) via the azimuthal angular correlation between two particles both at |n| < 0.9 while the v2(PT) values depend on the colliding systems, the v3(PT) values are system independent within the uncertainties, suggesting an influence on eccentricity from subnucleonic fluctuations in these small-sized systems. Furthermore, these results also provide stringent constraints for the hydrodynamic modeling of these systems.

Research Organization:
Brookhaven National Laboratory (BNL), Upton, NY (United States); Texas A & M Univ., College Station, TX (United States)
Sponsoring Organization:
USDOE Office of Science (SC), Nuclear Physics (NP)
Contributing Organization:
STAR Collaboration
Grant/Contract Number:
SC0012704; SC0017982
OSTI ID:
1973515
Alternate ID(s):
OSTI ID: 2222663
Report Number(s):
BNL-224286-2023-JAAM; TRN: US2313908
Journal Information:
Physical Review Letters, Vol. 130, Issue 24; ISSN 0031-9007
Publisher:
American Physical Society (APS)Copyright Statement
Country of Publication:
United States
Language:
English

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