## EPT Seminar

Calendar
Department of Physics Calendar
Date
Mon, Mar 27, 2017 4:00 pm - 5:30 pm
Location
PSC 3150

## Description

Speaker: Diptimoy Ghosh

Speaker Institution: Weizmann Institute of Science

Title: Hints of new physics in semi-leptonic B-meson decays

Abstract: In recent years, a number of interesting signals of potential new physics in semi-leptonic B-meson decays have been reported both by the B-factories
as well as the LHCb. In this talk, I will discuss these observations with a
particular emphasis on the observable $R_{D^*}$, the ratio of the branching
fraction of $\bar{B} \to D^* \tau \bar{ u}_\tau$ to that of $\bar{B} \to D^* \ell \bar{ u}_\ell (\ell = \mu, e )$, which shows a 3.3 sigma deviation
from the Standard Model prediction. I will present an effective field theory
analysis of these potential new physics signals and discuss possible ways to distinguish the various operators.

## Upcoming Events

Oct
20

Fri, Oct 20, 2017 3:30 pm - 4:30 pm

Oct
20

Fri, Oct 20, 2017 4:15 pm - 5:15 pm

Oct
20

Fri, Oct 20, 2017 7:00 pm - 8:30 pm

Oct
21

Sat, Oct 21, 2017 7:00 pm - 8:30 pm

Oct
23

Mon, Oct 23, 2017 11:00 am - 12:00 pm

Oct
23

Mon, Oct 23, 2017 3:00 pm - 4:30 pm

Oct
23

Mon, Oct 23, 2017 4:00 pm - 5:00 pm

Oct
23

Mon, Oct 23, 2017 4:30 pm - 5:30 pm

Oct
24

Tue, Oct 24, 2017 1:15 pm - 2:15 pm