1998/08/31 by Dipali Pal, Munshi G. Mustafa, Munshi Golam Mustafa
Physics and Astronomy · #Annihilation #Bremsstrahlung #Gluon #High-Energy Particle Collisions Research #Invariant mass #Large Hadron Collider #Nuclear physics #Particle physics #Particle physics theoretical and experimental studies #Parton #Photon #Physics #Plasma #Quantum Chromodynamics and Particle Interactions #Quark #Quark–gluon plasma #nucl-th
paper · pdf · doi:10.1103/physrevc.60.034905
published as Phys.Rev. C60 (1999) 034905 · 8 pages, including 7 figures To appear in Phys. Rev. C
arxiv created 1999/06/30 · openalex publication_date 1999/08/23 · arxiv updated 2009/12/01 · openalex created_date 2025/10/10 · openalex updated_date 2026/08/05
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<~0.3 GeV) and soft photons (pT<~0.5 GeV), the bremsstrahlung contribution is rather large compared to annihilation process at both the Relativistic Heavy Ion Collider (RHIC) and Large Hadron Collider (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.