Chapter V Weak Transitions of Low-Lying Baryons in the Skyrme Model
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概要
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We discuss the weak transitions of low-lying hyperons in the Skyrme model. It is shown that both the SU(3) Skyrme model and the bound kaon approach to strangeness can derive the ΔI=1/2 dominance for matrix elements of the current×current interaction between one-hyperon states, which is qualitatively similar to the quark model, although the structure of the weak transition amplitudes in the quark model is different from that in the Skyrme model. The vector currents, which are relevant to semileptonic decays, are shown to exhibit a peculiar behavior in the bound kaon approach. In the strong SU(3)_f symmetry breaking limit, however, the SU(3) Skyrme model treated in the Yabu-Ando approach turns out to show the same behaviors as those of the bound kaon approach.
- 理論物理学刊行会の論文
- 1992-09-10
著者
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SAITO Sakae
Department of Physics, Nagoya University
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FUJII Kanji
Department of Physics, Hokkaido University
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Saito Sakae
Department Of Physics Nagoya University
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Sakae Saito
Department Of Physics Nagoya University
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Fujii Kanji
Department Of Physics Faculty Of Science Hokkaido University
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Kondo Yoshihiko
Department Of Physics Nagoya University : Institute For Nuclear Study University Of Tokyo
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FUJII Kanji
Hokkaido University of Education
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Saito Sakae
Department Of Physics Hokkaido University
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FUJII Kazuyuki
Department of Mathemtics, Kyushu University
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KONDO Yosio
Research Institute for Fundamental Physics, Kyoto University
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KONDO Yoshihiko
Department of Physics, Kochi University
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KONDO Yoshihiko
Department of Internal Medicine, Division I, Kobe Medical College
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Fujii Kanji
Department of Mathemtics, Kyushu University
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SAITO Seiji
Department of Physics, Waseda University
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