Elliptic flow of thermal photons at midrapidity in Au+Au collisions at $\sqrt{s_{NN}}=200$ GeV

Abstract

The elliptic flow $v_2$ of thermal photons at midrapidity in Au+Au collisions at $\sqrt{s_{NN}}=200$ GeV is predicted, based on three-dimensional ideal hydrodynamics. Because of the interplay between the asymmetry and the strength of the transverse flow, the thermal photon $v_2$ reaches a maximum at $\pt \sim $ 2GeV/$c$ and the $\pt$-integrated $v_2$ reaches a maximum at about 50% centrality. The $\pt$-integrated $v_2$ is very sensitive to the lower limit of the integral but not sensitive to the upper limit due to the rapid decrease in the spectrum of the transverse momentum.

4 pages, 2 figures - To appear in the conference proceedings for Quark Matter 2009, March 30 - April 4, Knoxville, Tennessee

References in corpus (1)

• Centrality-dependent direct photon pt spectra in Au+Au collisions at RHIC

Cited by in corpus (8)

• Effective QCD and transport description of dilepton and photon production in heavy-ion collisions and elementary processes
• Centrality dependence of the direct photon yield and elliptic flow in heavy-ion collisions at sqrt(s)=200 GeV
• Hadronic and partonic sources of direct photons in relativistic heavy-ion collisions
• Photon elliptic flow in relativistic heavy-ion collisions: hadronic versus partonic sources
• Phenomenology of photon and di-lepton production in relativistic nuclear collisions
• Radial Flow from Electromagnetic Probes and Signal of Quark Gluon Plasma
• Measuring radial flow of partonic and hadronic phases in relativistic heavy ion collision
• Emissivity and conductivity of parton-hadron matter