Recent results by the LHCb experiment provide a pattern of possible deviations from Standard model predictions in the decays of b hadrons mediated by the b → sl+ l− transition, which occurs through loop diagrams with high sensitivity to New Physics. They presented their results on the measurement of the quantity RK∗ = Br(B→K∗ µ+µ−) Br(B→K∗ e+e−) .
The goal is to test the universality of lepton interactions. The muon is 200 times heavier than the electron, but in the Standard Model its interactions are otherwise identical to those of the electron, a property known as lepton universality, which means that we should have RK∗ = 1 for an invariant mass q2 (4mµ)2: no difference between muon and electron channels, i.e., electron and muons should be produced with the same probability in this specific B0 decay.
TeVPA 2017, which will be held 7-11 August 2017 in Columbus, Ohio, is now open for registration.
The conference will cover a full range of exciting topics in particle astrophysics and related subjects through an outstanding plenary program, many openings for parallel talks, and opportunities for community organized pre-meetings.
