# Helicity analysis of the decays $B \to K^* \ell^+ \ell^-$ and $B \to \rho \ell \nu_\ell$ in the large energy effective theory

@article{Ali2002HelicityAO,
title={Helicity analysis of the decays \$B \to K^* \ell^+ \ell^-\$ and \$B \to \rho \ell \nu_\ell\$ in the large energy effective theory},
author={A. Ali and A. Safir},
journal={The European Physical Journal C - Particles and Fields},
year={2002},
volume={25},
pages={583-601}
}
• Published 2002
• Physics
• The European Physical Journal C - Particles and Fields
• Abstract. We calculate the independent helicity amplitudes in the decays $B \to K^* \ell^+ \ell^-$ and $B \to \rho \ell \nu_\ell$ in the so-called Large-Energy-Effective-Theory (LEET). Taking into account the dominant $O(\alpha_s)$ and SU(3) symmetry-breaking effects, we calculate various Dalitz distributions in these decays making use of the presently available data and decay form factors calculated in the QCD sum rule approach. Differential decay rates in the dilepton invariant mass and the… CONTINUE READING
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