%0 Journal Article
%T QCD Sum Rule Analysis of the Decays $B \to K \ell^+ \ell^-$ and $B \to K^* \ell^+ \ell^-$
%A P. Colangelo
%A F. De Fazio
%A P. Santorelli
%A E. Scrimieri
%J Physics
%D 1995
%I arXiv
%R 10.1103/PhysRevD.57.3186
%X We use QCD sum rules to calculate the hadronic matrix elements governing the rare decays $B \to K \ell^+ \ell^-$ and $B \to K^* \ell^+ \ell^-$ induced by the flavour changing neutral current $b \to s$ transition. We also study relations among semileptonic and rare $B \to K^{(*)}$ decay form factors. The analysis of the invariant mass distribution of the lepton pair in $B \to K^{(*)} \ell^+ \ell^-$ and of the angular asymmetry in $B \to K^* \ell^+ \ell^-$ provides us with interesting tests of the Standard Model and its extensions.
%U http://arxiv.org/abs/hep-ph/9510403v2