Multiple scattering expansion of the self-energy at finite temperature

Journal Article · Sat Aug 01 04:00:00 EDT 1998 · Physical Review, D

DOI:https://doi.org/10.1103/PhysRevD.58.045013· OSTI ID:639853

Jeon, S; Ellis, P J ^[1]

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1. School of Physics and Astronomy, University of Minnesota, Minneapolis, Minnesota 55455 (United States)

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. {copyright} {ital 1998} {ital The American Physical Society}

• OSTI ID: 639853
• Journal Information: Physical Review, D, Journal Name: Physical Review, D Journal Issue: 4 Vol. 58; ISSN PRVDAQ; ISSN 0556-2821
• Country of Publication: United States
• Language: English

Related Subjects

66 PHYSICS
EXPANSION
FREE ENERGY
GREEN FUNCTION
MULTIPLE SCATTERING
PHASE SPACE
POTENTIALS
QUANTUM FIELD THEORY
RESPONSE FUNCTIONS
SCATTERING
SCATTERING AMPLITUDES
SELF-ENERGY
TEMPERATURE DEPENDENCE