Nonleptonic Hyperon Decays and Breaking of Chiral SU(3)xotimeSU(3)

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概要

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• Nonleptonic decays of hyperons are discussed in connection with the breaking of chiral SU(3)xotimeSU(3). We assume an effective ∂_μJ_μ^7(x) interaction of nonleptonic decays, which is reduced to Hw(x)=-iG[Q^7(x_0)+Q_5^7(x_0),m_0(S^0(x)+λS^8(x))]. The amplitudes of the decays calculated in hard-pion limit give a good agreement with experiment both for S-waves and P-waves. In addition, it is shown that the f/d ratio of scalar spurion is -3.06, which is very close to that of mass-splitting -3.05, and λ=2.01. Therefore one may identify M_0(S^0(x)+λS^8(x)) as a mass operator, and then the strength of weak ∂_μJ_μ^7(x) interaction is estimated to be G=0.232×10^<-5>.

• 理論物理学刊行会の論文
• 1970-08-25

著者

• Ohya Katsuhiko

  Department Of Physics And Atomic Energy Research Institute College Of Science And Engineering Nihon

• Ohya Katsuhiko

  Department Of Physics And Atomic Energy Research Institute Nihon University

関連論文

• Phenomenological Approach to Non-Leptonic Decays. II : Ω^- Decays under Parameters Fit to Decays of Octes Baryons
• Parity Nonconserving Nuclear Interactions and Weak Neutral Currents
• Phenomenological Approach to Non-Leptonic Decays. I : Scattering-like Structure as a Background of Vector Pole Dominance in S-waves, and a Problem of P-waves
• Violation of the |ΔI|=1/2 Rule in K→3π Decays
• Parity Nonconserving Nuclear Force in the Process n+p → d+γ
• Enhancement of the |ΔS|=0 Weak Interactions
• Nonleptonic Hyperon Decays and Breaking of Chiral SU(3)xotimeSU(3)

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