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Overview of $XYZ$ states and tetraquarks

C. Shen, Y. Su

in The 15th International Conference on Flavor Physics & CP Violation

Contribution: pdf


Many hadronic states beyond the conventional quark model (called charmoniumlike/bottomoniumlike states or $XYZ$ particles) were found during the past fourteen years. Their nature properties were proposed including glueballs, hybrids, multi-quark states, hadron molecules, etc. In this report, I present the most recent results on the $XYZ$ results from some experiments.