Review of bottomonium measurements from CMS

TL;DR

This review summarizes CMS experiment results on bottomonium, including production measurements, suppression phenomena indicating quark-gluon plasma, and searches for new states, providing insights into hadroproduction and future research directions.

Contribution

It compiles and discusses recent CMS measurements of bottomonium, highlighting new observations of suppression and pair production across different collision energies.

Findings

Observation of quarkonium sequential suppression

Measurement of bottomonium production cross sections

Detection of bottomonium pair production

Abstract

We review the results on the bottomonium system from the CMS experiment at the Large Hadron Collider. Measurements have been carried out at different center-of-mass energies in proton collisions and in collisions involving heavy ions. These include precision measurements of cross sections and polarizations, shedding light on hadroproduction mechanisms, and the observation of quarkonium sequential suppression, a notable indication of quark-gluon plasma formation. The observation of the production of bottomonium pairs is also reported along with searches for new states. We close with a brief outlook of the future physics program.