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Four-Point Spectral Functions and Ward Identities in Hot QED

We derive spectral representations for the different components of the 4-point function at finite temperature in the real time formalism in terms of five real spectral densities. We explicitly calculate all these functions in QED in the hard thermal loop approximation. The Ward identities obeyed by...

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Detalles Bibliográficos
Autores principales: Hou, De-fu, Carrington, M.E., Kobes, R., Heinz, Ulrich W.
Lenguaje:eng
Publicado: 1999
Materias:
Acceso en línea:https://dx.doi.org/10.1103/PhysRevD.61.085013
https://dx.doi.org/10.1103/PhysRevD.67.049902
http://cds.cern.ch/record/409516