Holographic light-front QCD supplies K* distribution amplitudes that produce alternate predictions for rare B decay form factors, compared against sum rules and experiment.
Effect of $c\overline{c}$ resonances in the branching ratio and forward-backward asymmetry of the decay $B \to K^{*} \mu^+ \mu^-$
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abstract
We compute the branching ratio and forward-backward asymmetry ($A_{FB}$) distribution for the rare dileptonic decay $B \to K^* \mu^+ \mu^-$ for the full range of $q^2$, the dimuon mass squared, region. For the required form factors, we use nonperturbative inputs as predicted by the anti-de Sitter (AdS)/QCD correspondence. When using the Breit-Wigner model with momentum-dependent decay constants to account for the $\psi$ and $\psi^\prime$ resonance effects in the nonresonance region of the spectrum, we find our predictions to be in better agreement with the experimental data for the branching ratio.
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hep-ph 1years
2019 1verdicts
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Holographic QCD predictions for rare B decays
Holographic light-front QCD supplies K* distribution amplitudes that produce alternate predictions for rare B decay form factors, compared against sum rules and experiment.