#CMSPaper 1228: one of the #unexpected #discoveries by CMS is correlations between the particles in proton-proton collisions, and this paper measures those in more detail by comparing short-range to long-range particle charges in various LHC collisions http://arxiv.org/abs/2307.11185 CMS Collaboration #CERN #physics #highenergynuclearphysics #ridge #particles #heavyionphysics

#CMSPaper 1221: J/ψ particles are produced copiously at the LHH, also in heavy ion collisions. But because it is made of (relatively) heavy #charm quarks, the J/ψ is great for testing the quark-gluon plasma. This paper measures for the first time how this is different depending on how far the J/ψ particle travels by selecting J/ψ particles that travel relatively far or less far https://arxiv.org/abs/2305.16928 @CMSexperiment #CERN #physics #HighEnergyNuclearPhysics #physics