Speaker
Description
The anomalies recently observed in b→sμμ data could be early signals of physics beyond the standard model (SM) in b→s transitions. Assuming this to be the case, we consider a scenario in which a Z' boson is responsible for the anomalies. We further assume that its interactions also affect rare nonleptonic decays of the Bs meson which tend to be dominated by electroweak-penguin contributions and are purely isospin-violating. Most of these Bs decays are not yet observed, and their rates are expected to be relatively small in the SM. Taking into account various constraints, we find that the Z' effects can enhance the rates of some of these decays, particularly Bs→ηπ, ϕπ, by up to an order of magnitude. This Z' scenario is therefore potentially testable in upcoming experiments at LHCb and Belle II.
