Non-leptonic decays of Ω-

In the decay of Ω-, large asymmetry and larger branching ratio than that by calculation are observed. These results are not in agreement with the theory, and this difficulty comes from the neglect of the equal-time commutator term. This paper describes the simple phenomenological modification of the theory, which was successful in the nonleptonic decay of octet members of hyperons. In the conventional current algebraic calculation of the amplitude for the non-leptonic decay of hyperons, the expression of the amplitude and the commutation relations have been used. As the results of recent experiments, the second class current can be introduced. Although the equal-time commutator term in the relation was derived in the soft meson limit, the real decay does not occur in the limit. In order to correct this difference, a form factor F (q2) is introduced to the equal-time commutator term. This modification was successful. The asymmetry parameter was estimated, The predicted branching fraction of the decay of Ω- can be sizable because the parity conserving amplitude is not vanishing. By using the central values of mass of relevant particles, the decay rate can be estimated. (Kato, T.)