Pure Leptonic Radiative Decays B

Ds with Radiative Corrections

The radiative corrections to the pure leptonic decay Ds−→lνl up-to one-loop order is presented. We find the virtual photon loop corrections to Ds−→τντ is negative and the corresponding branching ratio is larger than 3.51×10−3 . Considering the possible experimental resolutions, our prediction of the radiative decay Ds−→τντγ is not so large as others, and the best radiative channel to determine ...

Pure Leptonic Radiative Decays B ± , D s → ` νγ and the Annihilation Graph

Review of Experimental Results on Rare Radiative, Semileptonic and Leptonic B Decays

We review recent experimental progress in the domain of rare radiative, semileptonic and leptonic B decays. The statistical precision attained for these decays has reached a level where they start to impose meaningful constraints on the Cabibbo-Kobayashi-Maskawa matrix, which are complementary to those obtained from hadronic decays. While the current data indicate no deviations from Standard Mo...

CLNS 00/1712 hep-ph/0012204 LECTURES ON THE THEORY OF NON-LEPTONIC B DECAYS

These notes provide a pedagogical introduction to the theory of non-leptonic heavymeson decays recently proposed by Beneke, Buchalla, Sachrajda and myself. We provide a rigorous basis for factorization for a large class of non-leptonic two-body B-meson decays in the heavy-quark limit. The resulting factorization formula incorporates elements of the naive factorization approach and the hard-scat...

0 D ec 1 99 7 Radiative Leptonic Decays of B c Meson

To the leading order, the radiative leptonic decays Bc → γlν̄ ( l = e, μ ) are studied carefully. A non-relativistic constituent quark model and the effective Lagrangian for the heavy flavour decays are used. As a result, the branching ratios turn out to be of the orders of 10 for Bc → γμν̄ or for Bc → γeν̄. Based on this study, we point out the decays being accessible experimentally at the future...