Study of η-η′Mixing and SU(4) Quartet Scheme
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概要
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It is shown that the so-called Okubo ansatz and Iizuka rule in the quark model are not applicable to reduced matrix elements involving isoscalar 0^-mesons, whereas their generalization to the SU(4) quartet scheme are very successful in describing unifiedly all vertices with isoscalar mesons. As a result,η′(958) should not be assigned predominantly to the SU(4) singlet state, but rather to the 15-plet state in order to explain especially the suppression of η′ production compared with η in πN scattering. This leaads us to that other symmetry breaking term than (4, 4^*)⊕(4^*, 4) must be considered in chiral SU(4)×SU(4) scheme.
- 理論物理学刊行会の論文
- 1974-06-25
著者
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Suzuki Tsuneo
Department Of Physics Kanazawa University
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Suzuki Tsuneo
Department Of Forensic Medicine Yamagata University School Of Medicine
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