Elliptic flow of thermal photons and formation time of quark gluon plasma at RHIC

Abstract

We calculate the elliptic flow of thermal photons from Au+Au collisions at RHIC energies for a range of values for the formation time ${\tau }_0$ but fixed entropy (or particle rapidity density). The results are found to be quite sensitive to ${\tau }_0$. The $v_2$ for photons decreases as ${\tau }_0$ decreases and admits a larger contribution from the QGP phase which has a smaller $v_2$. The elliptic flow coefficient for hadrons, on the other hand, is only marginally dependent on ${\tau }_0$.

2 extra figures and discussion added. To appear in Physical Review C (Rapid Communication)

References in corpus (3)

• Electromagnetic radiation from nuclear collisions at RHIC energies
• Elliptic flow of thermal dileptons in relativistic nuclear collisions
• Elliptic flow of thermal photons and dileptons

Cited by in corpus (13)

• Pseudo-Critical Enhancement of Thermal Photons in Relativistic Heavy-Ion Collisions
• Thermal photon $v_2$ with slow quark chemical equilibration
• Enhancement of thermal photon production in event-by-event hydrodynamics
• Ellipticity of photon emission from strongly magnetized hot QCD plasma
• The low and intermediate mass dilepton and photon results
• Single photons from relativistic collision of lead nuclei at CERN SPS: A reanalysis
• Direct Photons in Hydrodynamic Modeling of Relativistic Nuclear Collisions
• Ratio of photon anisotropic flow in relativistic heavy ion collisions
• Production and anisotropic flow of thermal photons in collision of $\alpha$-clustered carbon with heavy nuclei at relativistic energies
• Photon and dilepton emission anisotropy for a magnetized quark-gluon plasma
• Thermal photon production in Au+Au collisions: viscous corrections in two different hydrodynamic formalisms
• Time Evolution of Thermal Photon Elliptic Flow
• Hydrodynamic model of heavy-ion collisions with low momentum components