RARE DECAY ETA-]PI-PI-GAMMA-GAMMA IN CHIRAL PERTURBATION-THEORY

Citation
G. Knochlein et al., RARE DECAY ETA-]PI-PI-GAMMA-GAMMA IN CHIRAL PERTURBATION-THEORY, Physical review. D. Particles and fields, 53(7), 1996, pp. 3634-3642
Citations number
21
Categorie Soggetti
Physics, Particles & Fields
ISSN journal
05562821
Volume
53
Issue
7
Year of publication
1996
Pages
3634 - 3642
Database
ISI
SICI code
0556-2821(1996)53:7<3634:RDEICP>2.0.ZU;2-A
Abstract
We investigate the rare radiative eta decay modes eta-->pi(+)pi(-) pi( -)gamma gamma and eta-->pi(0) pi(0) gamma gamma within the framework o f chiral perturbation theory at O(p(4)). We present photon spectra and partial decay rates for both processes as well as a Dalitz contour pl ot for the charged decay.