Resonances in weak nonleptonic Omega(-) decay - art. no. 054021

We examine the importance of J(P) = 1/2(+), 1/2(-) resonances for weak nonl eptonic Omega(-) decays within the framework of chiral perturbation theory. The spin-1/2 resonances are included into an effective theory and the tree contributions to the Omega(-) decays are calculated. We find significant c ontributions to the decay amplitudes and satisfactory agreement with experi ment. This confirms and extends previous results wherein such spin-1/2 reso nances were included in nonleptonic and radiative-nonleptonic hyperon decay s. [S0556-2821(99)01017-6].