Generalized emission functions for photon emission from quark-gluon plasma
نویسندگان
چکیده
منابع مشابه
Empirical Emission Functions for LPM Suppression of Photon Emission from Quark-Gluon Plasma
The LPM suppression of photon emission rates from the quark gluon plasma have been studied at different physical conditions of the plasma given by temperature and chemical potentials. The integral equation for the transverse vector function (̃f(p̃⊥)) consisting of multiple scattering effects is solved by the variational method as well as the self consistent iterations method for the parameter set...
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We compute the photon emission rate of an equilibrated, hot QCD plasma at zero chemical potential, to leading order in both αEM and the QCD coupling gs(T ). This requires inclusion of near-collinear bremsstrahlung and inelastic pair annihilation contributions, and correct incorporation of LandauPomeranchuk-Migdal suppression effects for these processes. Analogous results for a QED plasma are al...
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Abstract Direct photons play an important role as electromagnetic probes from the quark-gluon plasma (QGP) which occurs during ultrarelativistic heavy-ion collisions. In this context, it is of particular interest how the finite lifetime of the QGP affects the resulting photon production. Earlier investigations on this question were accompanied by a divergent contribution from the vacuum polariz...
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In-medium interactions of a particle in a hot plasma are considered in the framework of thermal field theory. The formalism to calculate gauge invariant rates for photon and dilepton production from the medium is given. In the application to a QED plasma, astrophysical consequences are pointed out. The photon production rate from strongly interacting quarks in the quark–gluon plasma, which migh...
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Photon emission arising in the course of transition between the states of quark-gluon and hadron plasma has been considered. Single-photon distributions and two-photon correlations in central rapidity region have been calculated for heavy ion collisions at high energies. It has been found that opposite side two-photon correlations can serve as a sign of sharp transitions between the states of s...
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ژورنال
عنوان ژورنال: Physical Review C
سال: 2007
ISSN: 0556-2813,1089-490X
DOI: 10.1103/physrevc.75.021902