Fragmentation of jets containing a prompt J$/\psi$ meson in PbPb and pp collisions at $\sqrt{s_\mathrm{NN}} =$ 5.02 TeV

  • Freya Blekman (Creator)
  • Emil Sørensen Bols (Creator)
  • Simranjit Singh Chhibra (Creator)
  • Jorgen D'Hondt (Creator)
  • Jarne Theo De Clercq (Creator)
  • Denys Lontkovskyi (Creator)
  • Steven Lowette (Creator)
  • Ivan Marchesini (Creator)
  • Seth Moortgat (Creator)
  • Alexander Morton (Creator)
  • Quentin Python (Creator)
  • Stefaan Tavernier (Creator)
  • Walter Van Doninck (Creator)

Dataset

Abstract

Jets containing a prompt J/ψ meson are studied in lead-lead collisions at a nucleon-nucleon center-ofmass energy of 5.02 TeV, using the CMS detector at the LHC. Jets are selected to be in the transverse
momentum range of 30 < pT < 40 GeV. The J/ψ yield in these jets is evaluated as a function of the jet
fragmentation variable z, the ratio of the J/ψ pT to the jet pT. The nuclear modification factor, RAA,
is then derived by comparing the yield in lead-lead collisions to the corresponding expectation based
on proton-proton data, at the same nucleon-nucleon center-of-mass energy. The suppression of the J/ψ
yield shows a dependence on z, indicating that the interaction of the J/ψ with the quark-gluon plasma
formed in heavy ion collisions depends on the fragmentation that gives rise to the J/ψ meson.
Datum van beschikbaarheid20 nov 2021
UitgeverHEPData

Format

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