Predictions for the semileptonic decays of charm baryons are given in two quark models: The nonrelativistic and the MIT bag models. We find that several processes have large branching ratios, of the order of few percent; these are very large in comparison with the strange-hyperon semileptonic-decay branching ratios. We also notice that the q 2 dependence overwhelms other corrections and should be considered in the future with more emphasis. Finally, the predictions found for the A: decay-when compared with the corresponding experimental value-leave ample room for the existence of a fourth generation.
A priori mixings of eigenstates in physical states are quantum mechanical effects well known in several realms of physics. The possibility that such effects are also present in particle physics, in the form of flavor and parity mixings, is studied. Applications to weak radiative and non-leptonic decays of hyperons are discussed.
Non-leptonic Decays of Hyperons can provide a detailed determination of the a priori mixing angles that appear in physical hadrons in the approach in which non-perturbative flavor and parity violations are present in tiny pieces of the hadron mass operator. The determination of such angles in these decays will provide a bench mark to test their necessary universality-like property in other types of decays. Our main result is that the magnitudes of the a priori mixing angles can be determined quite accurately.
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