pi-eta scattering in generalized chiral perturbation theory

Abstract

We calculate the amplitude of pi-eta scattering in generalized chiral perturbation theory at the order O(p^4) and present preliminary results of the numerical analysis of the S-wave scattering length, which seems to be particularly sensitive to the deviations from the standard case.

Comments: 7 pages, 2 figures, Talk presented at Int. Conf. Hadron Structure '02, Herlany, Slovakia, September 22-27, 2002. Typos and one reference corrected