Martin Zdrahal (Praha):
Dispersive Approach to Chiral Perturbation Theory
Abstract:
We have generalised the reconstruction theorem of
Stern, Sazdjian and Fuchs based on the dispersion relations to the case of the (2→2)
scattering of all the pseudoscalar octet mesons (π, K, η). This theorem was used to
obtain the amplitudes of all such processes to the oneloop order independently on the
particular powercounting scheme of the chiral perturbation theory in question.
