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ψ(2S)-to-J/ψ ratio vs Npart in Run 3 OO collisions in the dimuon channel at forward rapidity

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)
psi2s_to_jpsi_ratio_vs_npart_oo_logx_final.eps
Figure image (.pdf)
psi2s_to_jpsi_ratio_vs_npart_oo_logx_final.pdf
Figure Caption

Here the ψ(2S)-to-J/ψ ratio vs Npart is shown for 3 collision systems: Pb-Pb, pp and OO

The new preliminary result is the OO one and here it is displayed in logarithmic scale on the x axis

Detail description

-LHC25 pass2 data 

-10-100% centrality bin

- MCH-MID tracks

- 0.3 < pT < 20 GeV/c

- Mixed-event background