Decays of B Mesons
نویسندگان
چکیده
منابع مشابه
Hadronic Decays of B Mesons
We review recent experimental results on hadronic decays and lifetimes of hadrons containing b and c quarks[1]. We discuss charm counting and the semileptonic branching fraction in B decays, the color suppressed amplitude in B decay, and the search for gluonic penguins in B decay. A complete picture of inclusive B decay is beginning to emerge from recent measurements by CLEO II and the LEP expe...
متن کاملSemileptonic Decays of B Mesons
In this section, we discuss some of the key questions related to semileptonic decays of B mesons: the inclusive semileptonic branching fraction, the determination of jV cb j and jV ub j from inclusive and exclusive measurements, recent progress in exclusive semileptonic decays, and form factor measurements and tests of heavy-quark eeective theory. We emphasize the uncertainties that arise in ex...
متن کاملB Decays into Light Mesons
I calculate the form factors describing semileptonic and penguin induced decays of B mesons into light pseudoscalar and vector mesons. The form factors are calculated from QCD sum rules on the light-cone including contributions up to twist 4, radiative corrections to the leading twist contribution and SU(3) breaking effects. The theoretical uncertainty is estimated to be ∼ (15–20)%. To be publi...
متن کاملNon-Leptonic Weak Decays of B Mesons
We present a detailed study of non-leptonic two-body decays of B mesons based on a generalized factorization hypothesis. We discuss the structure of non-factorizable corrections and present arguments in favour of a simple phenomenological description of their effects. To evaluate the relevant transition form factors in the factorized decay amplitudes, we use information extracted from semilepto...
متن کاملRadiative Dileptonic Decays of B Mesons
We investigate the radiative dileptonic decays Bs(Bd) → γll within the standard model. Using the constituent quark model, the branching ratios turn out to be around 5× 10 for Bs → γμμ and around 6× 10 for Bd → γμμ, with slightly larger values for Bs(Bd) → γee. Differential spectrums over the dilepton invariant mass are given. The possibility of using these processes to determine the decay const...
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ژورنال
عنوان ژورنال: Annual Review of Nuclear and Particle Science
سال: 1991
ISSN: 0163-8998,1545-4134
DOI: 10.1146/annurev.ns.41.120191.000245