Status of the B-physics anomalies

October 23, 2017
3:00pm to 4:00pm

IFT Seminar Room/Red Room

Theoretical Physics, general interest
Damir Becirevic
LPT Orsay

IFT Seminar Room/Red Room


I discuss the current status of the discrepancies between the experimentally established ratios
to check the lepton flavor universality violation and the values estimated within the Standard Model,
both in the tree-level processes

$R_{D^{(\ast)}} = B(B\to D^{(\ast)} \tau \nu) / B(B\to D^{(\ast)} \ell \nu)$ [$\ell \in (e,\mu )$]

and in the loop-induced ones,

$R_{K^{(\ast)}} = B(B\to K^{(\ast)} \mu \mu) / B(B\to K^{(\ast)} ee)$.

After a short review of the models proposed in the literature, I will focus on various leptoquark scenarios
to show that the scalar leptoquarks can still be used to describe the above mentioned anomalies.
A brief recount of the "little $B$-physics anomaly" will also be made as well as a prospects for near