# ICHEP 2020

28 July 2020 to 6 August 2020
virtual conference
Europe/Prague timezone

## The study of the rare decays $B^{0}_s \rightarrow \mu^+\mu^-$ at $\sqrt{s}$ = 13 TeV with the ATLAS detector

29 Jul 2020, 13:33
3m
virtual conference

#### virtual conference

Poster 05. Quark and Lepton Flavour Physics

### Speaker

Mazuza Ghneimat (Universitaet Siegen (DE))

### Description

The flavour-changing neutral currents of the rare decays $B^{0}_s \rightarrow \mu^+\mu^-$ provide a favourable environment to observe new physics. The study of these decays, using the data collected by the ATLAS detector, is presented. Their branching ratios are measured relative to the reference decay mode $B^{+/-} \rightarrow J/\psi K^{+/-}$, which is abundant and has a well-measured branching fraction B($B^{+/-} \rightarrow J/\psi K^{+/-}$) $\times$ B($J/\psi \rightarrow \mu^+\mu^-$). The event yields of the reference and the rare-decay channels are extracted employing the unbinned maximum likelihood fit approach.

### Primary author

Mazuza Ghneimat (Universitaet Siegen (DE))

### Presentation Materials

 Ghneimat_poster_ICHEP2020_final.pdf Ghneimat_slides_ICHEP2020_final.pdf