Hidden local symmetry for anomalous processes with isospin- and SU(3)-breaking effects
- Department of Physics Nagoya University, Nagoya 464-01 (Japan)
We show that isospin- and SU(3)-breaking terms can be introduced to the anomalous {ital VVP} coupling in the hidden local symmetry scheme without changing the Wess-Zumino-Witten term in the low-energy limit. We make the analysis for anomalous processes of two-body and three-body decays such as radiative vector meson decays ({ital V}{r_arrow}{ital P}{gamma}), conversion decays of a photon into a lepton pair ({ital V}{r_arrow}{ital Pl}{sup +}{ital l}{sup {minus}}), and hadronic anomalous decays ({ital V}{r_arrow}{ital PPP}). The predictions successfully reproduce all experimental data of anomalous decays. In particular, we predict the decay widths of {rho}{sup 0}{r_arrow}{pi}{sup 0}{gamma} and {phi}{r_arrow}{eta}{prime}{gamma} as 101{plus_minus}9 keV and 0.508{plus_minus}0.035 keV, respectively, which will be tested in the DA{Phi}NE {phi} factory. Moreover, predictions are also made for {phi}{r_arrow}{pi}{sup 0}{ital e}{sup +}{ital e}{sup {minus}}, {rho}{r_arrow}3{pi}, {ital K}{asterisk}{r_arrow}{ital K}{pi}{pi}, and so on, for which only the experimental upper bounds are available now. {copyright} {ital 1996 The American Physical Society.}
- OSTI ID:
- 388449
- Journal Information:
- Physical Review, D, Vol. 54, Issue 9; Other Information: PBD: Nov 1996
- Country of Publication:
- United States
- Language:
- English
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