Particle Seminar

Monday, April 13, 2020

Speaker: David London

Affiliation: U de Montreal

Time: 2:30PM -- 3:30PM

Location: Virtual seminar on zoom

Title: Anomalies in B Decays: A Sign of New Physics?

Abstract: At present, there are several measurements of observables in B decays that disagree with
the predictions of the Standard Model. These can be separated into two classes of decays,
those involving b → sμ+μ − or b → c l ν  transitions. The size of the deviations varies from
∼ 2σ to >∼ 4σ. We may be seeing signs that new physics (NP) is present in these decays. In
this talk, I will review these anomalies, focusing on their dependence (or not) on theoretical
input. I will discuss the possible NP explanations, as well as ways of distinguishing these
NP models.