Tests of Lepton Flavor Universality at LHCb

22 Aug 2018, 12:00
30m
RAI-G-041 (Zürich)

RAI-G-041

Zürich

Rämistrasse 74

Speaker

Annarita Buonaura (Universität Zürich (CH))

Description

The Lepton Flavour Universality (LFU) anomalies are currently one of the hottest topics in the particle physics community. LFU can be violated in models beyond the SM by new physics particles that couple preferentially to certain generations of leptons. A combination of recent results from LHCb, Belle and BaBar on the ratio of branching fractions of tree level b->clν processes have shown a discrepancy from the Standard Model (SM) prediction of ≈ 4 σ. Tensions with respect to SM predictions have also been observed in both branching fractions and angular observables of rare semileptonic b decays.
In the talk I will mainly review the latest lepton universality tests with both semileptonic and rare semileptonic decays of B mesons and I will give a short outlook for the near future.

Presentation materials