New experimental results on light and heavy hadrons

TL;DR

This paper reviews recent experimental discoveries of exotic hadrons, including XYZ states, pentaquarks, and molecular states, highlighting progress in understanding light and heavy hadron structures.

Contribution

It provides a comprehensive overview of recent experimental findings on exotic hadrons, emphasizing new states and their possible configurations.

Findings

Observation of hadronic molecules

Detection of new exotic states like XYZ and pentaquarks

Evidence for diverse quark configurations in hadrons

Abstract

We review the experimental progress on the study of light and heavy hadrons and focus on recent discoveries of the XYZ states, pentaquark states, $T_{cs}$ and $T_{cc}$ states in the heavy hadron sector, and on the $\pi_1(1600)$ and the states close to the $p\bar{p}$ threshold in the light hadron sector. The observations suggest that we did observe hadronic molecules and we also observed hadronic states with some other quark configurations.