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Lc / D0 meson ratio in 30-50% central Pb-Pb collisions at sqrt(s_NN) = 5.02 TeV

Figure Information
Scope: PWG
PWG-HF (Heavy Flavour)
Energy
5.02 TeV
System
Pb-Pb
Figure Group
Lc production in Pb-Pb collisions at 5.02 TeV - 2018 data sample
Figure Image
Figure image (.eps)
2019-09-16-LcD_PbPb18_3050.eps
Figure image (.pdf)
2019-09-16-LcD_PbPb18_3050.pdf
Figure Caption

Lc / D0 ratio as a function of pT in the range 2-24 GeV/c measured in 30-50% central Pb-Pb collisions at sqrt(s_NN) = 5.02 TeV (2018 data sample). The Lc points are averaged over the AdaBoost (TMVA) and XGBoost (MLHEP) methods. The D0 measurement is performed in the same data sample and rebinned to the same pT binning.

Detail description

 

Lc / D0 ratio as a function of pT in the range 2-24 GeV/c measured in 30-50% central Pb-Pb collisions at sqrt(s_NN) = 5.02 TeV (2018 data sample). The Lc points are averaged over the AdaBoost (TMVA) and XGBoost (MLHEP) methods. The D0 measurement is performed in the same data sample and rebinned to the same pT binning.

  • Data sample: LHC18q_pass1, LHC18r_pass1
  • List of runs: RunList_LHC18q_pass1_CentralBarrelTracking_hadronPID,  RunList_LHC18r_pass1_CentralBarrelTracking_hadronPID
  • Event cuts: |vtx_z| < 10 cm, trigger: kSemiCentral
  • pp reference from preliminary analysis with 2017 pp data at 5 TeV, but for the last point, which is extrapolated (needed for f_prompt calculation.