Angular analysis of the rare decay Bs0 → ϕμ + μ −

Abstract

An angular analysis of the rare decay Bs0→ ϕμ+μ− is presented, using proton-proton collision data collected by the LHCb experiment at centre-of-mass energies of 7, 8 and 13 TeV, corresponding to an integrated luminosity of 8.4 fb−1. The observables describing the angular distributions of the decay Bs0→ ϕμ+μ− are determined in regions of q2, the square of the dimuon invariant mass. The results are consistent with Standard Model predictions. [Figure not available: see fulltext.]