Soft Electromagnetic Radiations From Equilibrating Quark-Gluon Plasma

Details Soft Electromagnetic Radiations From Equilibrating Quark-Gluon Plasma Soft Electromagnetic Radiations From Equilibrating Quark-Gluon Plasma

1998-08-18

arxiv.org/abs/nucl-th/9808049v2

Phys.Rev. C60 (1999) 034905

Physics

Nuclear Physics

Nuclear Theory

8 pages, including 7 figures To appear in Phys. Rev. C

Scientific paper

10.1103/PhysRevC.60.034905

We evaluate the bremsstrahlung production of low mass dileptons and soft photons from equilibrating and transversely expanding quark gluon plasma which may be created in the wake of relativistic heavy ion collisions. We use initial conditions obtained from the self screened parton cascade model. We consider a boost invariant longitudinal and cylindrically symmetric transverse expansion of the parton plasma and find that for low mass dileptons ($M \leq 0.3$ GeV) and soft photons ($p_{T} \leq 0.5$ GeV), the bremsstrahlung contribution is rather large compared to annihilation process at both RHIC and LHC energies. We also find an increase by a factor of 15-20 in the low mass dileptons and soft photons yield as one goes from RHIC to LHC energies.

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