Effects of Mixing Between Low and High Mass Scalar Mesons for Radiative Decays Involving f0(98O) and a0(980)
- Department of Applied Physics, Chubu University, Kasugai 487-8501 (Japan)
Assuming f0(980) and a0(980) are mainly qqq-barq-bar low mass scalar mesons and mixed with qq-bar high mass scalar mesons, we analyzed the mixing effects for {phi} {yields} f0(980){gamma}, {phi} {yields} a0(980){gamma}, f0(980) {yields} {gamma}{gamma} and a0(980) {yields} {gamma}{gamma}. Used the vector meson dominance model (VDM), these decay amplitudes are expressed by coupling parameters B describing the S(qqq-barq-bar scalar meson)-V(vector meson)-V(vector meson) coupling and B' describing the S'(qq-bar scalar meson)-V-V coupling. If the magnitudes for B and B' are {approx} 2.8GeV-1 and {approx} 12GeV-1, respectively, the mixing angle between a0(980) and a0(1450) are {approx} 9 deg., and the mixing parameter {lambda}01 causing the mixing between I = 0 qqq-barq-bar state and qq-bar state is {approx} 0.24GeV2 , the experimental data for these radiative decays are interpreted consistently.
- OSTI ID:
- 20798145
- Journal Information:
- AIP Conference Proceedings, Journal Name: AIP Conference Proceedings Journal Issue: 1 Vol. 814; ISSN 0094-243X; ISSN APCPCS
- Country of Publication:
- United States
- Language:
- English
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