Note on the Decay Interactions of Hyperons and Heavy Mesons

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概要

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• The decay processes are investigated based on Nishijima and Gell-Mann's charge independence theory of heavy unstable particles. We assume that the decay interaction Hamiltonian is a spinor in isotopic spin space, when all particles participating in a decay process have definite isotopic spins. The branching ratio of various decay modes including radiative decays and the relation of lifetimes among charge multiplets are obtained. For instance, the difference between lifetimes of θ^0 and of θ^+, and the branching ratio of the τ^+ particle are well interpreted under our assumption. Our theory is also applied to the decay of the lightest hyperfragment ^3H_Λ.

• 理論物理学刊行会の論文

著者

• Kawaguchi Masaaki

  Research Institute For Fundamental Physics Kyoto University

• Iso Chikashi

  Physics Department Tokyo University Of Education

• Iso Chikashi

  Physics Department Tokyo Unversity Of Education

• ISO Chikashi

  Physics Department, Tokyo Unversity of Education

関連論文

• Note on the Decay Interactions of Hyperons and Heavy Mesons
• Note on the Decays of Σ Particles
• Kinematical Investigation of the S-matrix
• Quantum Field Theory of Unstable Particles
• On the Relation between Meson-Nucleon Scattering and Photomeson Production
• Composite Model and the Nature of Vector Interactions in Strangeness-Violating Decays
• Note on the Decay Interactions of Hyperons and Heavy Mesons
• Polarization of the Recoil Nucleon from the Photoproduction of Pion

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