Weak Decays of $B$ Mesons and Lattice QCD

Details Weak Decays of $B$ Mesons and Lattice QCD Weak Decays of $B$ Mesons and Lattice QCD

1994-12-13

arxiv.org/abs/hep-ph/9412284v1

Acta Phys.Polon.B25:1679-1730,1994

Physics

High Energy Physics

High Energy Physics - Phenomenology

51 pages, uuencoded compressed LATEX file; based on an invited lecture given at the XXXIVth Cracow School of Theoretical Physi

Scientific paper

After a pedagogical introduction to the calculation of weak matrix elements on the lattice, I review some of the lattice's most recent predictions concerning the weak decays of $B$-mesons. Amongst the topics covered are the determinations of the leptonic decay constant $f_B$, of the form factors relevant for semi-leptonic $B\to D(D^*)\ell\bar\nu$ decays and of the hadronic matrix element which describes the rare decay $B\to K^*\gamma$. Emphasis is placed on the results of the UKQCD Collaboration. Corrections to the heavy-quark limit are discussed extensively.

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