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Lattice-Constrained Parametrizations of Form Factors for Semileptonic and Rare Radiative B Decays

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Original languageEnglish
Pages (from-to)392–401
JournalPhysics Letters B
Issue number3-4
Publication statusPublished - 28 Aug 1997


We describe the form factors for semileptonic B to rho l nu and radiative B to K* gamma decays with just two parameters and the two form factors for semileptonic B to pi l nu decays with three parameters. The parametrizations are constrained by lattice results and are consistent with heavy quark symmetry, kinematic constraints and light cone sum rule scaling relations.

    Research areas

  • hep-lat, Semileptonic and rare radiative decays of B mesons, Determination of Cabibbo-Kobayashi-Maskawa matrix elements, Lattice QCD calculation, Heavy quark effective theory

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