# IOP 2014 Joint HEPP & APP Group Meeting

7-9 April 2014
Royal Holloway, University of London
Europe/London timezone
Institute of Physics 2014 Joint High Energy Particle Physics and Astro Particle Physics Groups Annual Meeting

## Rare B decays in ATLAS: results and most recent updates on the 2012 analyses

8 Apr 2014, 13:45
15m
Room B (Windsor Building)

### Room B

#### Windsor Building

contributed talk Flavour Physics and Beyond

### Speaker

Cristiano Alpigiani

### Description

Weak decays that are naturally suppressed in the Standard Model, such as processes with flavour-changing neutral-currents, are perfect for indirect searches of new physics. These decays allow us to investigate higher energy ranges with respect to direct searches thus representing a fundamental complementary tool. Results on the ATLAS search for the $B_s\rightarrow \mu^+\mu^-$ rare decay will be presented together with the most recent updates on the 2012 analysis that will be published soon. The ATLAS study of $B_d\rightarrow K^{\star}\mu^+\mu-$ is also reported where the parameters $A_{FB}$ and $F_L$ are extracted from the angular distribution of the final state.

 Slides