10 papers · 1 filter
Probing gluon fluctuations in nuclei with the first energy-dependent measurement of incoherent J/ photoproduction in ultraperipheral PbPb collisions
CMS Collaboration
Incoherent J/ photoproduction in heavy ion ultraperipheral collisions (UPCs) provides a sensitive probe of localized, fluctuating gluonic structures within heavy nuclei. This s…
Observation of the charged-particle multiplicity dependence of in pPb collisions at 8.16 TeV
CMS Collaboration
Bound states of charm and anticharm quarks, known as charmonia, have a rich spectroscopic structure that can be used to probe the dynamics of hadron production in high-energy hadro…
Elliptic anisotropy measurement of the f(980) hadron in proton-lead collisions and evidence for its quark-antiquark composition
CMS Collaboration
Despite the f(980) hadron having been discovered half a century ago, the question about its quark content has not been settled: it might be an ordinary quark-antiquark ($\mathr…
Measurement of light-by-light scattering and the Breit-Wheeler process, and search for axion-like particles in ultraperipheral PbPb collisions at = 5.02 TeV
CMS Collaboration
Measurements of light-by-light scattering (LbL, ) and the Breit-Wheeler process (BW, ) are reported in ultraperipheral PbPb collisi…
Evidence for similar collectivity of high transverse momentum particles in pPb and PbPb collisions
CMS Collaboration
Charged hadron elliptic anisotropies () are presented over a wide transverse momentum () range for proton-lead (pPb) and lead-lead (PbPb) collisions at nucleon-nuc…
Search for jet quenching with dijets from high-multiplicity pPb collisions at = 8.16 TeV
CMS Collaboration
The first measurement of the dijet transverse momentum balance in proton-lead (pPb) collisions at a nucleon-nucleon center-of-mass energy of = 8.16 TeV…