HET Seminar

"Hints of New Physics in Semi-leptonic B-meson Decays"

Presented by Diptimoy Ghosh, Weizman

Wednesday, April 5, 2017, 2:00 pm — Small Seminar Room, Bldg. 510

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 $\bar{B} \to D^* \tau \bar{\nu}_\tau$ to that of $\bar{B} \to D^* \ell \bar{\nu}_\ell (\ell = \mu, e )$, 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.

Hosted by: Amarjit Soni

12154  |  INT/EXT  |  Events Calendar


Not all computers/devices will add this event to your calendar automatically.

A calendar event file named "calendar.ics" will be placed in your downloads location. Depending on how your device/computer is configured, you may have to locate this file and double click on it to add the event to your calendar.

Event dates, times, and locations are subject to change. Event details will not be updated automatically once you add this event to your own calendar. Check the Lab's Events Calendar to ensure that you have the latest event information.