Review and interpretation of the new heavy states discovered at the $B$-factories

TL;DR

This paper reviews recent discoveries of new heavy states in charmonium-like resonances at B-factories and discusses their theoretical interpretations.

Contribution

It provides a comprehensive review of recent experimental findings and theoretical models related to heavy charmonium-like states.

Findings

Identification of new charmonium-like resonances

Comparison of experimental data with theoretical models

Discussion of possible interpretations of the states

Abstract

I discuss some recent discoveries in the spectroscopy of the charmonium-like resonances, and some of their theoretical interpretations are reviewed.