Photon and Dilepton Emission from the Quark - Gluon Plasma: Some General Considerations
Aug, 198457 pages
Published in:
- Phys.Rev.D 31 (1985) 545
Report number:
- FERMILAB-PUB-84-084-T
Citations per year
Abstract: (APS)
The emission rates for photons and dileptons from a quark-gluon plasma are related to the thermal expectation value of an electromagnetic current-current correlation function. This correlation function possesses an invariant-tensor decomposition with structure functions entirely analogous to W1 and W2 of deep-inelastic scattering of leptons from hadronic targets. The thermal scaling properties of the appropriate structure functions for thermal emission are derived. The thermal structure functions may be computed in a weak-coupling expansion at high plasma temperature. The rates for thermal emission are estimated, and for dileptons, using conservative estimates of the plasma temperature, the thermal-emission process is argued to dominate over the Drell-Yan process for dilepton masses 600 MeV- QUARK GLUON: PLASMA
- PHOTON: EMISSION
- EMISSION: PHOTON
- LEPTON: PAIR PRODUCTION
- PAIR PRODUCTION: LEPTON
- CORRELATION FUNCTION
- STRUCTURE FUNCTION
- THERMODYNAMICS: CRITICAL PHENOMENA
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