The F/D Ratios and Odd-Parity Baryon Resonances

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概要

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• The F/D ratios of baryon resonance decays into the J^P=1/2^+ -octet baryon and pseudoscalar meson are determined on the basis of the non-relativistic quark model. The classification of the odd parity baryon resonances into the (70,3)^--supermultiplet of [SU(6) × O(3)]^<Parity> group is made in comparison between our calculated F/D ratios and the experimental data. It is found that the (70,3)^--classification gives a reasonable interpretation for the odd parity baryon resonances. In particular, the spin-parity of Ξ^* (1930 MeV) is most probably J^P=5/2^- in our approach. However, N^*_<1/2> (1700 MeV) is not classified into (70,3)^--supermultiplet for various reasons such as the F/D ratio, the mass and the total decay width. In addition, a short discussion is made on the even parity baryon resonances using the F/D ratios.

• 理論物理学刊行会の論文
• 1969-08-25

著者

• Kaiba Masayuki

  Department Of Physics Kanazawa University

• SHIGA Kunio

  Department of Physics Kyushu University

• Shiga Kunio

  Department Of Physics Kyushu Industrial University

関連論文

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• On the Degeneracy of Regge Trajectories Imposed by the Veneziano-Type Amplitude
• An Approach to Regge Behaviour and Duality Based on an Infinite Sum of One-Particle-Exchange Amplitudes
• Constant Differences among Total Cross Sections and a New "Pomeranchon"
• The F/D Ratios and Odd-Parity Baryon Resonances
• Particle Exchange, Regge-Pole Exchange and the Veneziano Amplitude for KN Scattering
• Meson Decays in the Dynamical Composite Model
• V-P-P Vertex in the Dynamical Composite Model
• A Systematics and Phenomenology of the Strong Interaction of Baryons

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