Three-Point Spectral Density in QED and the Ward Identity at Finite Temperature

Details Three-Point Spectral Density in QED and the Ward Identity at Finite Temperature Three-Point Spectral Density in QED and the Ward Identity at Finite Temperature

1997-10-10

arxiv.org/abs/hep-th/9710090v2

Eur.Phys.J.C7:101,1999

Physics

High Energy Physics

High Energy Physics - Theory

16 pages, 1 figure, some corrections in sec1, sec.5

Scientific paper

10.1007/s100520050389

We derive the spectral representations of QED 3-point functions and then
explicitly calculate the 3-point spectral densities in hard thermal loop
approximation within the real time formalism. The Ward identities obeyed by the
retarded and advanced 2- and 3-point functions are discussed. We compare our
results with those for hot QCD .

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