The Anomalous Decay eta -> pi pi gamma gamma
arXiv:hep-ph/9510374 · doi:10.1016/0146-6410(96)00018-X
Abstract
We investigate the rare radiative eta decay modes eta -> pi+ pi- gamma gamma and eta -> pi0 pi0 gamma gamma within the framework of chiral lagrangians at o(p^4) and present photon spectra for both processes.
5 pages, revtex preprint, PS figures in separate file, presented at the International School of Nuclear Physics, Erice, Sicily, Italy, September 1995