Parity-Violating Amplitudes of Charmed-Baryon Nonleptonic Decays due to 45- and 45*-Hamiltonian
نویسندگان
چکیده
منابع مشابه
Nonleptonic weak decays of charmed mesons.
A previous analysis of two-body Cabibbo allowed nonleptonic decays of D mesons and of Cabibbo allowed and first-forbidden decays of D and D s has been adjourned using more recent experimental data and extended to the Cabibbo forbidden decays of D. Annihilation and W-exchange contributions as well as final state interaction effects (assumed to be dominated by nearby resonances) have been include...
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Quark and pole models of nonleptonic decays of charmed baryons are analysed from the point of view of their symmetry properties. The symmetry structure of the parity conserving amplitudes that corresponds to the contribution of the ground-state intermediate baryons is shown to differ from the one hitherto employed in the symmetry approach. It is pointed out that the ”subtraction” of sea quark e...
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Exclusive nonleptonic decays of bottom baryons to charm baryons and pseudoscalar light mesons are analyzed within a relativistic three-quark model. We include factorizing as well as nonfactorizing contributions to the decay amplitudes. The total contribution of the nonfactorizing diagrams amount up to 30 % of the factorizing contributions in amplitude. We present detailed predictions for rates ...
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In the framework of the factorization and the heavy quark effective theory, B → D 2π modes are analyzed. We adopt the result from the QCD sum rule calculation for the hadronic matrix elements at leading order of ΛQCD/mQ and αs. The QCD sum rule results are well compatible with the current data, with the prediction on the branching ratios B(B̄0 → D 2 π) = 8.94 × 10−4 and B(B− → D∗0 2 π) = 9.53 × ...
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ژورنال
عنوان ژورنال: Progress of Theoretical Physics
سال: 1978
ISSN: 0033-068X,1347-4081
DOI: 10.1143/ptp.59.1040