Elliptic flow of thermal photons in heavy-ion collisions at Relativistic Heavy Ion Collider and Large Hadron Collider

Abstract

We calculate the thermal photon transverse momentum spectra and elliptic flow in $\sqrt{s_{NN}}=200$ GeV Au+Au collisions at RHIC and in $\sqrt{s_{NN}}=2.76$ TeV Pb+Pb collisions at the LHC, using an ideal-hydrodynamical framework which is constrained by the measured hadron spectra at RHIC and LHC. The sensitivity of the results to the QCD-matter equation of state and to the photon emission rates is studied, and the photon $v_2$ is discussed in the light of the photonic $p_T$ spectrum measured by the PHENIX Collaboration. In particular, we make a prediction for the thermal photon $p_T$ spectra and elliptic flow for the current LHC Pb+Pb collisions.

11 pages, 13 figures

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Cited by in corpus (26)

• Direct photon production in Pb-Pb collisions at $\sqrt{s_\rm{NN}}$ = 2.76 TeV
• Effective QCD and transport description of dilepton and photon production in heavy-ion collisions and elementary processes
• Pseudo-Critical Enhancement of Thermal Photons in Relativistic Heavy-Ion Collisions
• Measurement of Direct-Photon Elliptic Flow in Pb-Pb Collisions at sqrt(NN) = 2.76 TeV
• Anisotropic flow of thermal photons as a quark-gluon plasma viscometer
• Elliptic flow of thermal photons from event-by-event hydrodynamic model
• Hydrodynamics at RHIC and LHC: What have we learned?
• Thermal photon $v_2$ with slow quark chemical equilibration
• Universal Parametrization of Thermal Photon Rates in Hadronic Matter
• Collision centrality and ${\tau }_0$ dependence of the emission of thermal photons from fluctuating initial state in ideal hydrodynamic calculation
• On the role of magnetic field in photon excess in heavy ion collisions
• A Tale of Tails: Photon Rates and Flow in Ultra-Relativistic Heavy Ion Collisions
• Thermal photon emission from the pi-rho-omega system
• Photon production and elliptic flow from momentum-anisotropic quark-gluon plasma
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• Update on Chiral Symmetry Restoration in the Context of Dilepton Data
• Effective distributions of quasi-particles for thermal photons
• Electromagnetic fingerprints of the Little Bang
• Direct Photons in Hydrodynamic Modeling of Relativistic Nuclear Collisions
• Excitation of Chandrasekhar-Kendall photons in Quark Gluon Plasma by an ultrarelativitsic quark
• Theory of Soft Electromagnetic Emission in Heavy-Ion Collisions
• Centrality dependence of low-momentum direct-photon production in Au$+$Au collisions at $\sqrt{s_{{}_{NN}}}=200$ GeV
• Hydrodynamic model of heavy-ion collisions with low momentum components
• Photon production in Pb+Pb collisions at $\sqrt{s_{NN}}$=2.76 TeV