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Title: Measurement of the higher-order anisotropic flow coefficients for identified hadrons in Au + Au collisions at s N N = 200 GeV

Journal Article · · Physical Review C
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In this paper, measurements of the anisotropic flow coefficients v22}, v33}, v44}, and v42} for identified particles (π±, K±, and p + ¯p) at midrapidity, obtained relative to the event planes Ψm at forward rapidities in Au + Au collisions at s N N = 200 GeV , are presented as a function of collision centrality and particle transverse momenta pT. The vn coefficients show characteristic patterns consistent with hydrodynamical expansion of the matter produced in the collisions. For each harmonic n, a modified valence quark-number Nq scaling [plotting vnm}/(Nq)n/2 versus transverse kinetic energies (KET)/Nq] is observed to yield a single curve for all the measured particle species for a broad range of KET . A simultaneous blast-wave model fit to the observed vnm}(pT) coefficients and published particle spectra identifies radial flow anisotropies ρnm} and spatial eccentricities snm} at freeze-out. Finally, these are generally smaller than the initial-state participant-plane geometric eccentricities εnPPm} as also observed in the final eccentricity from quantum interferometry measurements with respect to the event plane.

Research Organization:
Brookhaven National Laboratory (BNL), Upton, NY (United States)
Sponsoring Organization:
USDOE Office of Science (SC), Nuclear Physics (NP)
Contributing Organization:
PHENIX Collaboration
Grant/Contract Number:
SC0012704
OSTI ID:
1341655
Alternate ID(s):
OSTI ID: 1254885
Report Number(s):
BNL-113379-2016-JA
Journal Information:
Physical Review C, Vol. 93, Issue 5; ISSN 2469-9985
Publisher:
APSCopyright Statement
Country of Publication:
United States
Language:
English
Citation Metrics:
Cited by: 32 works
Citation information provided by
Web of Science

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Cited By (3)

Azimuthal anisotropy in Cu+Au collisions at s NN = 200 GeV journal July 2018
Effects of equation of state on hydrodynamic expansion, spectra, flow harmonics and two-pion interferometry journal July 2018
Improved Quark Coalescence for a Multi-Phase Transport Model text January 2017


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