Abstract
We use AdS/QCD holographic distributions amplitudes for the vector mesons \({\rho}\) and K * in order to predict the radiative decays \({B \to \rho \gamma}\) and \({B \to K^{*} \gamma}\) as well as the semileptonic decays \({B \to \rho l \nu}\) and \({B \to K^{*} \mu^{+} \mu^{-}}\). For the radiative decays, we find that the AdS/QCD DAs offer the advantage of avoiding end-point singularities when computing power suppressed contributions. For the semileptonic decays \({B \to \rho l \nu}\) and \({B \to K^{*} \mu^{+} \mu^{-}}\), we compare our predictions to the latest BaBar and LHCb data respectively.
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Ahmady, M., Lord, S. & Sandapen, R. Light-Front Holography in B Physics. Few-Body Syst 56, 545–550 (2015). https://doi.org/10.1007/s00601-014-0936-x
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DOI: https://doi.org/10.1007/s00601-014-0936-x