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*0 µ + µ− and B+ → K+ µ + µ− are studied using a sample of proton-proton collisions at collected with the CMS detector at the LHC, corresponding to an integrated luminosity of 20.5 fb−1. Angular analyses are performed to determine P 1 and angular parameters for B0 → K*0 µ + µ− and AFB and FH 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.