ΔI=1/2 Rule in Ω Decay and the Relativistic Composite Model
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概要
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We investigate the nonleptonic decays of Ω on the basis of the relativistic composite model. The amplitude of Ω→∧K^- is dominated by Ξ^0-pole and shown to be consistent with the calculated one in this model. The Penguin interaction gives a small correction for this process, but plays an essential role Ω→Ξπ decay through K-pole contribution. The last situations is quite different from that of the ΔI=1/2 rule in nyperon decay, where the one-baryon transition governed by the Miura-Minamikawa theorem plays an important role. The observed ΔI=3/2 parts in Ξπ decay modes and also in the hyperon decays are reduced to the contribution from the quark-decay process.
- 理論物理学刊行会の論文
- 1981-08-25
著者
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Okazaki Takashi
Department Of Applied Physics School Of Science And Engineering Waseda University
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Okazaki Takashi
Department Of Physics Hokkaido Universityy
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