Exotic charmonium spectroscopy with CMS

TL;DR

This paper presents CMS's recent findings on exotic quarkonium decays, including new structures in $J/\u03a6$ spectra, searches for bottomonium states, and measurements of prompt $J/$ pair production, advancing understanding of exotic hadrons.

Contribution

It reports new experimental observations and searches related to exotic quarkonium states, providing valuable data for understanding quarkonium spectroscopy.

Findings

Observation of a peaking structure in $J/\u03a6$ mass spectrum

Search results for new bottomonium states in $ ext{ extperiodcentered}$ spectrum

Measurement of prompt $J/$ pair production cross section

Abstract

The latest results of CMS in the area of exotic quarkonium decays will be presented: observation of a peaking structure in $J/\psi\Phi$ mass spectrum in the decay $B^\pm \rightarrow J/\psi \Phi K^\pm$, search for new bottomonium states in $\Upsilon(1\mathrm{S})\pi^+\pi^-$ mass spectrum, measurement of prompt $J/\psi$ pair production.