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J/ψ and ψ(2S) invariant mass Run 3 OO in dimuon channel at forward rapidity in 10-100% centrality bin

Figure Information
Scope: PWG
PWG-DQ (Dileptons and Quarkonia)
Energy
5.36 TeV
System
O-O
Figure Group
[PWG-DQ] Hard Probes 2026 : Preliminary and performance figures
Figure Image
Figure image (.eps)
inv_mass_10_100_se_me_1.eps
Figure image (.pdf)
inv_mass_10_100_se_me_1.pdf
Figure Caption

Here the invariant mass spectrum for 10-100% centrality bin is shown.

The larger plot displays the invariant mass and corresponding fits for J/ψ and ψ(2S) based on the invariant mass spectrum (reported with empty black markers), after subtracting the mixed-event background (reported with empty orange markers).

The smaller plot is a zoom on the ψ(2S) peak.

Detail description

-LHC25 pass2 data

-10-100% centrality bin

- MCH-MID tracks

- 0.3 < pT < 20 GeV/c

- Mixed-event background