Review on low and high mass spectroscopy

TL;DR

This paper reviews recent experimental advances in hadron spectroscopy, focusing on exotic states, heavy quarkonium, and charmonium-like XYZ states up to bottomonium mass, highlighting progress in understanding hadron structures.

Contribution

It provides a comprehensive overview of recent experimental findings in hadron spectroscopy, emphasizing new states and decay modes up to bottomonium mass.

Findings

Identification of exotic J^PC=1^-+ states

Discovery of new charmoniumlike XYZ states

Progress in understanding heavy quarkonium spin-singlets

Abstract

We review the most recent experimental progress in the hadron spectroscopy, up to bottomonium mass. This covers the search for the J^PC=1^-+ exotic state, the states in J/psi decays, the spin-singlets of heavy quarkonium, and the charmoniumlike XYZ states.