The Decay Omega- -> Xi- pi+ pi- in Chiral Perturbation Theory
Abstract
We study the decay Omega- -> Xi- pi+ pi- in heavy-baryon chiral perturbation theory. At leading order, the decay is completely dominated by the Xi*0(1530) intermediate state, and the predicted rate and Xi-pi+ mass distribution are in conflict with currently available data. It is possible to resolve this conflict by considering additional contributions at next-to-leading order.
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