Energetic di-leptons from the Quark Gluon Plasma

Abstract

In this paper we study the production of energetic di-leptons. We calculate the rate for 2 $\to$ 2 processes. The log term is obtained analytically and the constant term is calculated numerically. When the photon mass is of the order of the thermal quark mass, the result is insensitive to the photon mass and the soft logarithmic divergence is regulated by the thermal quark mass, exactly as in the case of real photons. We also consider the production of thermal Drell-Yan dileptons (thermal quark and antiquark pairs produced by virtual photons) and calculate the rate systematically in the context of the hard thermal loop effective theory. We obtain analytic and numerical results. We compare our results with those of previous calculations.

12 pages, 10 figures

References in corpus (7)

• Photon Emission from Quark-Gluon Plasma: Complete Leading Order Results
• Landau-Pomeranchuk-Migdal resummation for dilepton production
• Improved hard-thermal-loop effective action for hot QED and QCD
• Production of energetic dileptons with small invariant masses from the quark-gluon plasma
• Enhanced thermal production of hard dileptons by $3\to 2$ processes
• Real time statistical field theory
• Scattering amplitudes at finite temperature

Cited by in corpus (8)

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• Low Mass Dilepton Rate from the Deconfined Phase
• Virtual photon polarization in ultrarelativistic heavy-ion collisions
• Second Order Corrections to the Magnetic Moment of Electron at Finite Temperature
• Electrical conductivity of the quark-gluon plasma from the low energy limit of photon and dilepton spectra
• Photon emissivity of the quark-gluon plasma: a lattice QCD analysis of the transverse channel
• NLO thermal dilepton rate at non-zero momentum