Thermal photon production in high-energy nuclear collisions

Abstract

We use a boost-invariant one-dimensional (cylindrically symmetric) fluid dynamics code to calculate thermal photon production in the central rapidity region of S+Au and Pb+Pb collisions at SPS energy ($\sqrt{s}=20$ GeV/nucleon). We assume that the hot matter is in thermal equilibrium throughout the expansion, but consider deviations from chemical equilibrium in the high temperature (deconfined) phase. We use equations of state with a first-order phase transition between a massless pion gas and quark gluon plasma, with transition temperatures in the range $150\le T_c\le 200$ MeV.

revised, now includes a_1 contribution. revtex, 10 pages plus 4 figures (uuencoded postscript)

References in corpus (4)

• Photon production through $A_1$ resonance in high energy heavy ion collisions
• What can we learn from a second phi meson peak in ultrarelativistic nuclear collisions?
• Seeing the QCD phase transition with phi mesons
• Where the excess photons and dileptons in SPS nuclear collisions come from?

Cited by in corpus (20)

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• Photon production and elliptic flow from momentum-anisotropic quark-gluon plasma
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• Nuclear Shadowing Effects on Prompt Photons at RHIC and LHC
• Medium effect on photon production in ultrarelativistic nuclear collisions
• Direct photons in Pb+Pb at CERN-SPS from microscopic transport theory
• Photons from Pb + Pb and S + Au Collisions at CERN SPS Energies
• Photon Production from a Quark--Gluon Plasma
• Dilepton production from resonance scattering in hot hadronic matter
• Photon emission in Pb+Pb collisions at SpS and LHC
• Photon production in heavy-ion collisions at SPS energies