Two or Four : A Hint from Scalar Mesons in Radiative φ Decays?(Tetraquarks and related topics, Exotic hadrons, New Frontiers in QCD-Exotic Hadrons and Hadronic Matter-)
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概要
- 論文の詳細を見る
In this write-up, we summarize our recent analysis of radiative decays involving light scalar mesons. Our analysis using the vector meson dominance model at tree level indicates that it may be difficult to distinguish qqqq picture and qq picture for the light scalar nonet. Our result on the process of φ→π^0 ηγ shows that the derivative-type f_0KK interaction reproduces experimental data below 950 MeV well, but gives a poor fit above 950 MeV, i.e., in the energy region around the mass of a_0(980), but that the discrepancy can be compensated by the effect of the K loop.
- 理論物理学刊行会の論文
- 2007-11-09
著者
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Harada Masayasu
Department Of Physics Kyoto University
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BLACK Deirdre
Department of Physics, Cavendish Laboratory, University of Cambridge
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SCHECHTER Joseph
Department of Physics, Syracuse University
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Black Deirdre
Department Of Physics Cavendish Laboratory University Of Cambridge
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Schechter Joseph
Department Of Physics Syracuse University
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