Model independent analysis of the angular observables in $B^{0} to K^{*0} mu^+ mu^-$ and $B^{+} to K^{*+} mu^+ mu^-$

We analyse the results recently presented on the $B^{+} to K^{*+} mu^+ mu^-$ angular observables by the LHCb Collaboration which show indications for New Physics beyond the Standard Model. Within a model-independent analysis, we compare the fit results with the corresponding results for the angular observables in $B^{0} to K^{*0} mu^+ mu^-$.