Thermal photon production in high-energy nuclear collisions

Details Thermal photon production in high-energy nuclear collisions Thermal photon production in high-energy nuclear collisions

1994-09-09

arxiv.org/abs/nucl-th/9409008v3

Phys.Rev.C51:1460-1464,1995

Physics

Nuclear Physics

Nuclear Theory

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

Scientific paper

10.1103/PhysRevC.51.1460

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 $150 \leq T_c \leq 200$ MeV.

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