Physicists from the CMS (Compact Muon Solenoid) Collaboration at CERN’s Large Hadron Collider have detected about 100 particles of a type known as X(3872) in quark-gluon plasma, an environment that they hope will illuminate the particles’ as-yet unknown structure. Sirunyan et al. found evidence of X(3872) particles in the quark-gluon plasma produced in CERN’s Large Hadron Collider. Image credit: Pete Linforth. “The basic building blocks of...
