Angular analyses of b → sll  transitions at CMS

The flavour changing neutral current decays are interesting probes for searching for new physics. Angular distributions of b → sℓ⁺ℓ⁻ transition processes of both B⁰ → K^*0µ⁺µ⁻ and B⁺ → K⁺µ⁺µ⁻ are studied using a sample of proton-proton collisions at $\sqrt{s}=8{\rm{TeV}}$ collected with the CMS detector at the LHC, corresponding to an integrated luminosity of 20.5 fb⁻¹. Angular analyses are performed to determine P₁ and ${{P}^{^{\prime} }}_{5}$ angular parameters for B⁰ → K^*0µ⁺µ⁻ and A_FB and F_H parameters for B⁺ → K⁺µ⁺µ⁻, all as functions of the dimuon invariant mass squared. All of the measurements are consistent with the standard model predictions.