Multiple Scattering Expansion of the Self-Energy at Finite Temperature

Abstract

An often used rule that the thermal correction to the self-energy is the thermal phase-space times the forward scattering amplitude from target particles is shown to be the leading term in an exact multiple scattering expansion. Starting from imaginary-time finite-temperature field theory, a rigorous expansion for the retarded self-energy is derived. The relationship to the thermodynamic potential is briefly discussed.

33 pages. Uses ReVTeX and epsf. 8 figures

References in corpus (9)

• Hydrodynamic Transport Coefficients in Relativistic Scalar Field Theory
• Dilepton Production at SPS Energies
• Computing Spectral Densities in Finite Temperature Field Theory
• Analytic Continuation of Thermal $N$-Point Functions from Imaginary- to Real-Energies
• Nucleons at Finite Temperature
• Generalized forward scattering amplitudes in QCD at high temperature
• On the thermal mass shift of nucleons
• Thermal Bosonic Green Functions Near Zero Energy (6 characters removed for email)
• Fermion damping rate in a hot medium

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