Jun 2 – 7, 2019
Carnegie Mellon University
America/New_York timezone

## Studies of Xi(1620)^0 and Xi(1690)^0 hyperons at Belle

Jun 6, 2019, 1:30 PM
30m
Rangos 1

### Speakers

Dr Mizuki Sumihama (Gifu University / Osaka University RCNP) Belle collaboration

### Description

The $\Xi$ excited states are not well understood because of less experimental study. In this presentation, we report on the studies of $\Xi(1620)^0$ and $\Xi(1690)^0$ via the $\Xi_c^+ -> \Xi^- \pi^+ \pi^+$ decays by using a data sample collected with the Belle detector at the KEKB asymmetric-energy $e^+e^-$ collider. We observe the $\Xi(1620)^0$ and measure its mass and width. We find an evidence of the $\Xi(1690)^0$ in the $\Xi\pi$ decay mode.