Eur. Phys. J. C 10, 487-490
DOI 10.1007/s100529900125
Photon production in relativistic heavy-ion collisions using rates with two-loop calculations from quark matter
D.K. Srivastava1,2
1 Variable Energy Cyclotron Centre,
1/AF Bidhan Nagar, Calcutta
700 064, India
2 Fakultät für Physik, Universität Bielefeld, D-33501,
Bielefeld, Germany
Received: 6 April 1999 / Revised version: 30 April 1999 / Published online: 8 September 1999
Abstract
The production of single photons in relativistic heavy-ion collisions
at CERN SPS, BNL RHIC and CERN LHC energies is re-examined in view
of the recent studies of Aurenche et al., which show that
the rate of photon production from quark-gluon plasma evaluated
at the order of two loops by far exceeds the rates evaluated at
the one-loop level,
which have formed the basis of all the estimates of photons so far.
We find that the production of photons from quark matter could easily
outshine those from the hadronic matter under certain ideal conditions.
Copyright Springer-Verlag
