# A Virtual Tribute to Quark Confinement and the Hadron Spectrum 2021

Aug 2 – 6, 2021
online
Europe/Brussels timezone

## Quarkonium at Belle II

Aug 5, 2021, 9:00 AM
20m
online

#### online

Parallel contribution C: Heavy quarks

### Speaker

Kiyoshi Tanida (Japan Atomic Energy Agency)

### Description

The Belle II experiment at the SuperKEKB energy-asymmetric $e^+ e^-$ collider is an upgrade of the B factory facility at KEK in Tsukuba, Japan. The experiment began operation in 2019 and aims to record a factor of 50 times more data than its predecessor. Belle II is uniquely capable of studying the so-called "XYZ" particles: heavy exotic hadrons consisting of more than three quarks. First discovered by Belle, these now number in the dozens, and represent the emergence of a new category within quantum chromodynamics. We present recent results in new Belle II data, and the future prospects to explore both exotic and conventional quarkonium physics.

### Primary authors

Jim Libby (IIT Madras) Kiyoshi Tanida (Japan Atomic Energy Agency)