Theory Status - Puzzles in B Meson Decays and LFU?
Svjetlana Fajfer
SciPost Phys. Proc. 1, 010 (2019) · published 18 February 2019
- doi: 10.21468/SciPostPhysProc.1.010
- Submissions/Reports
Proceedings event
The 15th International Workshop on Tau Lepton Physics
Abstract
Currently B meson puzzles motivate many studies of New Physics due to the observed deviations from the Standard Model predictions. There are two B meson puzzles, RD(∗) and RK(∗). The first one denotes the deviations in the decays driven by the charged current in the ratio of the decay widths for B → D(∗)τν and B → D(∗)μν, while the second one is related to the ratio of the decay widths for B → K (∗) μ+ μ− and B → K (∗) e+ e− transition. Also, the measured muon anomalous magnetic moment differs from the SM predictions. Usually, the effective Lagrangian approach containing New Physics effects is used to analyse RD(∗) and RK(∗). Among many models of New Physics, various leptoquark models are suggested to resolve both B meson anomalies. If New Physics is confirmed in B decays a number of processes at low and high energies should confirm its presence.
Cited by 3
Author / Affiliations: mappings to Contributors and Organizations
See all Organizations.- 1 2 Svjetlana Fajfer
- 1 Univerza v Ljubljani / University of Ljubljana [UL]
- 2 Institut Jožef Stefan / Jožef Stefan Institute [IJS]