2010/12/22 by A. Ster, M. Csanad, M. Csanád +6
Physics and Astronomy · #Antiproton #Azimuth #Elliptic flow #Geometry #Hadron #Heavy ion #High-Energy Particle Collisions Research #Nuclear physics #Particle physics theoretical and experimental studies #Physics #Pion #Plane (geometry) #Proton #Quantum Chromodynamics and Particle Interactions #Quantum mechanics #Spectral line #Transverse mass #Transverse plane #hep-ph #nucl-ex #nucl-th
paper · pdf · doi:10.1140/epja/i2011-11058-7
published as Eur.Phys.J. A47 (2011) 58-66 · 8 pages, 5 figures, 2 tables
arxiv created 2010/12/22 · openalex publication_date 2011/04/01 · arxiv updated 2011/06/08 · openalex created_date 2025/10/10 · openalex updated_date 2026/08/05
We present calculations of elliptic flow and azimuthal dependence of correlation radii in the ellipsoidally symmetric generalization of the Buda-Lund hydrodynamic model of hadron production in high-energy nuclear collisions. We compare them to data from RHIC by simultaneous fits to azimuthally integrated invariant spectra of pions, kaons and protons-antiprotons measured by PHENIX in Au+Au reactions at center of mass energy of 200 AGeV. STAR data were used for azimuthally sensitive two-particle correlation function radii and for the transverse momentum dependence of the elliptic flow parameter v2. We have found that the transverse flow is faster in the reaction plane then out of plane, which results in a reaction zone that gets slightly more elongated in-plane than out of plane. The model parameters extracted from the fits are shown and discussed.