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QCD Sum Rule Analysis of B \to (K,K^*) (\ell^+\ell^-,ν\barν) Decays

Pietro Santorelli
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Abstract

We use three-point QCD sum rules to calculate the form factors governing the rare exclusive decays B \to (K,K^*) \ell^+ \ell^-, B \to (K,K^*) ν\barν. We predict the branching ratios, the invariant mass distributions of the lepton pair for B \to (K,K^*) \ell^+ \ell^-, and the spectra of missing energy for B \to (K,K^*) ν\barν. The forward-backward asymmetry in B \to K^* \ell^+ \ell^- provides us with interesting tests of the Standard Model and its extensions.

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Pietro Santorelli. 1997-11-15. QCD Sum Rule Analysis of B \to (K,K^*) (\ell^+\ell^-,ν\barν) Decays. https://arxiv.org/abs/hep-ph/9711343

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