X, Y, Z Search at Belle II

TL;DR

This paper discusses the search for exotic hadronic states at Belle II, highlighting recent results and future plans to investigate these particles' properties and production mechanisms to better understand their nature.

Contribution

It presents the first re-discovery results of exotics at Belle II using initial data and outlines the ongoing search strategies for these states.

Findings

First re-discovery results with 5 pb$^{-1}$ data

Confirmation of exotic states at Belle II

Ongoing search for decay modes and production mechanisms

Abstract

Search for exotics has increased importance since the observation of the X(3872), 13 years ago, announced by the Belle Collaboration. The observation of pentaquark states by LHCb, and the Z-charged states observed at Belle and BES III have raised even more the attention to the field. Presently several states are observed that do not fit potential models, and looking for them in different production mechanisms and search for their decay modes it is important, as well as to do precise measurement of their mass, width, lineshape. We shortly report in this note about the plan in searching for exotics at Belle II at KEK (Tsukuba, Japan), that just ended the Phase-II running period, and show the first re-discovery results using 5 pb$^{-1}$ integrated luminosity.