Measurements of the Elliptic and Triangular Azimuthal Anisotropies in Central He3+Au, d+Au and p+Au Collisions at sNN=200GeV

Collaboration
Oct 20, 2022
9 pages
Published in:
  • Phys.Rev.Lett. 130 (2023) 24, 242301
  • Published: Jun 15, 2023
e-Print:
Experiments:

Citations per year

202220232024202521522
Abstract: (APS)
The elliptic (v2) and triangular (v3) azimuthal anisotropy coefficients in central He3+Au, d+Au, and p+Au collisions at sNN=200GeV are measured as a function of transverse momentum (pT) at midrapidity (|η|<0.9), via the azimuthal angular correlation between two particles both at |η|<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. These results also provide stringent constraints for the hydrodynamic modeling of these systems.
Note:
  • 5 pages, 4 figures
  • angular distribution: anisotropy
  • nucleus nucleus: scattering
  • deuteron nucleus: scattering
  • p nucleus: scattering
  • triangular flow
  • elliptic flow
  • fluctuation
  • angular correlation
  • transverse momentum
  • hydrodynamics