The CMS experiment presents the first measurement of ϒ mesons – bound states of a bottom quark-antiquark – in oxygen-oxygen and neon-neon collisions, and establishes that their production is suppressed owing to quark-gluon plasma droplets form…

  The CMS Collaboration announces several new results for the Hard Probes 2026 conference. The CMS Collaboration is presenting a number of new exciting results at The 13th International Conference on Hard and Electromagnetic Probes of High-Energ…

The worldwide CMS Collaboration is deeply saddened by the passing of Belgian theoretical physicist François Englert at the age of 93. Together with his colleague Robert Brout, and independently of British physicist Peter Higgs, Englert’s pioneering w…