2 papers
hep-ph1997
Corrections to Sirlin's Theorem in Chiral Perturbation Theory
P. Post, K. Schilcher
We present the results of the first two-loop calculation of a form factor in full Chiral Perturbation Theory. We choose a specific linear combination of $π^+,…
hep-ph1996
The sunset diagram in SU(3) chiral perturbation theory
P. Post, J. B. Tausk
A general procedure for the calculation of a class of two-loop Feynman diagrams is described. These are two-point functions containing three massive propagators, raised to integer…