We show that all abnormal parity three-body meson interactions can be adequately described by quark loops, evaluated at zero external momentum, with couplings determined by U(Nf) symmetry. We focus primarily on radiative meson decays which involve one pseudoscalar. The agreement with experiment for nonrare decays is surprisingly good and requires very few parameters, namely the coupling constants gπqq and gpqq and some mixing angles. This agreement extends to some three-body decays that are dominated by pion pairs in a P-wave state.

Item Type:	Refereed Article
Research Division:	Physical Sciences
Research Group:	Other Physical Sciences
Research Field:	Physical Sciences not elsewhere classified
Objective Division:	Expanding Knowledge
Objective Group:	Expanding Knowledge
Objective Field:	Expanding Knowledge in the Physical Sciences
UTAS Author:	Delbourgo, R (Professor Robert Delbourgo)
UTAS Author:	Liu, DS (Dr Dongsheng Liu)
UTAS Author:	Scadron, MD (Professor Scadron)
ID Code:	16541
Year Published:	1999
Web of Science® Times Cited:	15
Deposited By:	Physics
Deposited On:	1999-08-01
Last Modified:	2000-05-30
Downloads:	0