Charmonium production in pp, pPb and PbPb collisions with CMS

Andre Govinda Ståhl (1)

1 LLR - Laboratoire Leprince-Ringuet

The LHC Run 1 results of the analysis of charmonium production in pp, pPb and PbPb collisions with the CMS experiment are reported. The coherent J/ψ photoproduction cross section is measured as a function of rapidity in ultra-peripheral PbPb collisions at 2.76 TeV. The forward-backward ratio of prompt J/ψ yields in pPb collisions at 5.02 TeV is presented as a function of the event activity and p(T). The nuclear modification factor of prompt J/ψ in PbPb collisions at 2.76 TeV is shown as a function of rapidity, centrality and p(T). Finally, the ratio of ψ(2S) to J/ψ yields in PbPb collisions with respect to pp collisions at 2.76 TeV is analysed in different rapidity and centrality bins.

Mots clés: talk: South Padre Island 2016/09/12; p nucleus: interaction; heavy ion: scattering; lead; charmonium: hadroproduction; rapidity: difference; channel cross section: measured; rapidity dependence; transverse momentum dependence; impact parameter: dependence; p p: scattering; CMS; J/psi(3100): photoproduction; CERN LHC Coll; psi(3685): yield; J/psi(3100): yield; yield: ratio; coherence; nuclear matter: effect; experimental results; 2760 GeV-cms; 5020 GeV-cms

Domaines: Physique des Hautes Energies - Expérience [hep-ex]

Andre Govinda Ståhl. Charmonium production in pp, pPb and PbPb collisions with CMS. Hot Quarks 2016, Sep 2016, South Padre Island, United States. pp.012031, ⟨10.1088/1742-6596/832/1/012031⟩. ⟨hal-01554547⟩