The eta->pi^0 pi^0 gamma gamma decay in GCHPT

Abstract

Calculations of eta->pi^0 pi^0 gamma gamma decay in Generalized chiral perturbation theory are presented. Tree level and next-to-leading corrections are involved. Sensitivity to the violation of the standard counting is discussed.

Comments: 5 pages, 3 figures, Talk presented at Int. Conf. "Advanced Studies Institute - Symmetries and Spin" (SPIN-Praha-2003),July 12 - 19, 2003, Prague, Czech Republic, to be published in proceedings