# Spåtind 2018 - Nordic Conference on Particle Physics

Jan 2 – 7, 2018
Skeikampen, Norway
Europe/Oslo timezone

## Measurement of $B^0_s \rightarrow \psi(2S) \phi$ / $B^0_s \rightarrow J/\psi \phi$ ratio

Jan 5, 2018, 8:55 PM
5m
Skeikampen, Norway

#### Skeikampen, Norway

Hotellvegen 3, 2652 Svingvoll, Norway
Lightning talk

### Speaker

Haakon Midthun Kolstoe

### Description

In this talk we will have a brief look at the two decay modes $B^0_s \rightarrow J/\psi \phi$ and $B^0_s \rightarrow\psi(2S)\phi$ and the measurement of the corresponding ratio. To guarantee identical topologies between the two decays we have chosen to only look at the $\psi(2S)\rightarrow \mu^+\mu^-$ and $J/\psi \rightarrow \mu^+\mu^{-}$ modes. A quick look at the peaking backgrounds $B^0_s \rightarrow J/\psi f_0(980)$ and $B^0_s \rightarrow\psi(2S)f_0(980)$ is also given attention.

### Co-author

Gerald Eigen (University of Bergen (NO))

### Presentation materials

 haakonMK.pdf haakonMK.pptx