literature

Relative Modification of Prompt ψ(2S) and J/ψ Yields from pp to PbPb Collisions at sNN=5.02\sqrt{s_{NN}}=5.02 TeV

Collaboration
Nov 4, 2016
17 pages
Published in:
  • Phys.Rev.Lett. 118 (2017) 16, 162301
  • Published: Apr 20, 2017
e-Print:
Report number:
  • CMS-HIN-16-004,
  • CERN-EP-2016-258
Experiments:

Citations per year

2016201820202022202405101520
Abstract: (APS)
The relative modification of the prompt ψ(2S) and J/ψ yields from pp to PbPb collisions, at the center-of-mass energy of 5.02 TeV per nucleon pair, is presented. The analysis is based on pp and PbPb data samples collected by the CMS experiment at the LHC in 2015, corresponding to integrated luminosities of 28.0  pb-1 and 464  μb-1, respectively. The double ratio of measured yields of prompt charmonia reconstructed through their decays into muon pairs, (Nψ(2S)/NJ/ψ)PbPb/(Nψ(2S)/NJ/ψ)pp, is determined as a function of PbPb collision centrality and charmonium transverse momentum pT, in two kinematic intervals: |y|<1.6 covering 6.5
Note:
  • J/psi(3100): yield
  • psi(3685): yield
  • yield: measured
  • direct production
  • muon: pair
  • charmonium: transverse momentum
  • kinematics
  • phase space
  • suppression
  • mass spectrum