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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...
| Autores principales: | , , , |
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| Lenguaje: | eng |
| Publicado: |
1999
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| 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 |