Two-loop self-energy and multiple scattering at finite temperature

J. I. Kapusta, S. M.H. Wong

Research output: Contribution to journalArticlepeer-review

10 Scopus citations


One- and two-loop self-energies are worked out explicitly for a heavy scalar field interacting weakly with a light self-interacting scalar field at finite temperature. The ring or daisy diagrams and a set of necklace diagrams can be summed simultaneously. This simple model serves to illustrate the connection between multiloop self-energy diagrams and multiple scattering in a medium.

Original languageEnglish (US)
Article number045008
JournalPhysical Review D
Issue number4
StatePublished - 2001


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