An angular analysis of the decay B0d  → K∗μ+μ− is presented, based on proton-proton collision data recorded by the ATLAS experiment at the LHC. The study is using 20.3 fb−1 of integrated luminosity collected during 2012 at centre-of-mass energy of s√=8 TeV. Measurements of the K∗ longitudinal polarisation fraction and a set of angular parameters obtained for this decay are presented. The results are compatible with the Standard Model predictions.

Angular analysis of Bd0 → K ∗ μ + μ − decays in pp collisions at √s=8 TeV with the ATLAS detector

Dondero P.;Farina E. M.;Fraternali M.;Introzzi G.;Livan M.;Negri A.;