Hidden local symmetry for anomalous processes with isospin- and SU(3)-breaking effects

Journal Article · Fri Nov 01 04:00:00 EST 1996 · Physical Review, D

DOI:https://doi.org/10.1103/PhysRevD.54.5611· OSTI ID:388449

Hashimoto, M ^[1]

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1. 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, Journal Name: Physical Review, D Journal Issue: 9 Vol. 54; ISSN PRVDAQ; ISSN 0556-2821
• Country of Publication: United States
• Language: English

Related Subjects

66 PHYSICS
COUPLING
ELECTRONS
ISOSPIN
K*0-1430 MESONS
KAONS
LEPTONS
LOCALITY
PAIR PRODUCTION
PHI-1020 MESONS
PIONS
PIONS NEUTRAL
POSITRONS
PSEUDOSCALAR MESONS
RADIATIVE DECAY
RHO-770 MESONS
SU-3 GROUPS
SYMMETRY BREAKING
VECTOR MESONS