Physics – High Energy Physics – High Energy Physics - Phenomenology
Scientific paper
1995-10-04
Annals Phys. 252 (1996) 422-457
Physics
High Energy Physics
High Energy Physics - Phenomenology
32 Pages REVTeX, 9 Figures available as separate file
Scientific paper
10.1006/aphy.1996.0140
The technique of decomposing Feynman diagrams at the one loop level into elementary integrals is generalized to the imaginary time Matsubara formalism. The three lowest integrals, containing one, two and three fermion lines, are provided in a form that separates out the real and imaginary parts of these complex functions, according to the input arguments, in a fashion that is suitable for numerical evaluation. The forms given can be evaluated for arbitrary values of temperature, particle mass, particle momenta and chemical potential.
Klevansky Sandra P.
Rehberg Peter
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