Testing New Physics Effects in $B \to K^*\ell^+\ell^-$

Understand

It is generally believed that the decay mode $B\to K^*\ell^+\ell^-$ is one of the best modes to search for physics beyond the standard model.

• The angular distribution enables the independent measurement of several observables as a function of the dilepton invariant mass.
• The plethora of observables so obtained enable unique tests of the standard model contributions.
• We start by writing the most general parametric form of the standard model amplitude for $B\to K^*\ell^+\ell^-$ taking into account comprehensively all contributions within SM.