• Corpus ID: 119218039

The $\bar B \to \bar K π\ell \ell$ and $\bar B_s \to \bar K K \ell \ell$ distributions at low hadronic recoil

  title={The \$\bar B \to \bar K $\pi$\ell \ell\$ and \$\bar B\_s \to \bar K K \ell \ell\$ distributions at low hadronic recoil},
  author={Diganta Das and Gudrun Hiller and Martin Jung and Alexander Shires},
  journal={arXiv: High Energy Physics - Phenomenology},
The rare multi-body decays B->K pi ll and B_s->K K ll are both important as backgrounds to precision analyses in the benchmark modes B->K* ll and B_s->phi ll as well as sensitive probes of flavor physics in and beyond the standard model. We work out non-resonant contributions to B->K pi ll and B_s->K K ll amplitudes, where l=e,mu, at low hadronic recoil in a model-independent way. Using the operator product expansion in 1/m_b, we present expressions for the full angular distribution. The latter… 
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