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Coherent $ J/\psi$ cross section vs Npart in Pb-Pb collisions at $\sqrt{s_{\mathrm {NN}}}$ =5.02 TeV measured at midrapidty and forward rapidity

Figure Information
Scope: PWG
PWG-DQ (Dileptons and Quarkonia)
Energy
5.02 TeV
System
Pb-Pb
Figure Group
Low $p_{T}$ $J/\psi$ excess at midrapidity in peripheral Pb-Pb collisions at 5.02 TeV with full Run 2 + projections for Run3/4 (QM2022)
Figure Image
Figure image (.eps)
CrossSection_vs_Npart_vs_Forwardy_scaled.eps
Figure image (.pdf)
CrossSection_vs_Npart_vs_Forwardy_scaled.pdf
Figure Caption

Coherent  $ J/\psi$ cross section as a function of  $< N_{part}>$ in Pb--Pb collisions at   $\sqrt{s_{NN}}$ =5.02 TeV measured at midrapidity (black markers) and forward rapidity (red markers) normalized to the centrality interval width ($\Delta \rm C$).The statistical and the uncorrelated systematic uncertainties are shown as bars and boxes, respectively. The correlated systematic uncertainties are quoted in the legend.

Detail description

Data sample: full Run 2 data (LHC18q, LHC18r, LHC15o )

Reconstruction pass: pass 3 for LHC18q and LHC18r, pass 1 for LHC15o

Forward rapidity analysis note:

https://alice-notes.web.cern.ch/node/1102