Volume 340 - The 39th International Conference on High Energy Physics (ICHEP2018) - Plenary
Flavor theory & outlook
S. Fajfer
Full text: pdf
Published on: August 02, 2019
Abstract
Disagreements between experimental results and Standard Model theoretical predictions found in B meson decays, initiated many theoretical studies in flavour physics. The anomalous behaviour observed in B meson decays are known as $R_{D^{(∗)}}$ and $R_{K^{(∗)}}$ puzzles. The first one refers to the deviations in the decays in the ratio of the decay widths for $B \rightarrow D^{(∗)}τν$ and $B\rightarrow D^{(∗)}μν$, while the second one is related to the ratio of the decay widths for $B\rightarrow K^{(∗)}$$μ^+μ^− and B\rightarrow K^{(∗)}$$e^+e^−$ transition. In addition, the measured muon anomalous magnetic moment differs from the SM pre- dictions. I briefly review main results coming from the SM studies and the effective Lagrangian approach containing New Physics for $R_{D^{(∗)}}$ and $R_{K^{(∗)}}$.Then I discuss basic features of leptoquark models which can 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.
DOI: https://doi.org/10.22323/1.340.0715
How to cite

Metadata are provided both in "article" format (very similar to INSPIRE) as this helps creating very compact bibliographies which can be beneficial to authors and readers, and in "proceeding" format which is more detailed and complete.

Open Access