The LHCb measurements of $R_{K}$ and $R_{K^{*}}$ indicate a breaking of lepton flavour universality in rare decays of beauty hadrons.
They point to a deficit of decays mediated by a $b\rightarrow s \mu\mu$ transition, with respect to those mediated by a $b\rightarrow s ee$ transition. It is especially intriguing since several other observables in $b\rightarrow s \mu\mu$ decays show discrepancies with respect to their Standard Model predictions, and all these anomalies point to a consistent New Physics interpretation. I will give an overview of these various anomalies and their implications, and discuss the experimental challenges of their measurements, focusing especially on the LHCb measurement of $R_{K}$. I will also present what are the future plans, mainly at LHCb, to tackle these anomalies and understand their origin.
KMI Experiment, Tau Lepton Center Joint Seminar
"Anomalies in rare decays of beauty hadrons "
Thibaud Humair
( Imperial College London)
August 30, 2018 (Thu) 15:30-
KMI Science Symposia (ES635)
Abstract: