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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)

Description

Measurement of  the low  $p_{\mathrm{T}}$ J/$\psi$ excess at midrapidity ($|y|<$ 0.9) in Pb-Pb collisions at  $\sqrt{s_{NN}}$= 5.02 TeV. The J/$\psi$ mesons are reconstructed in the dielectron decay channel using the ALICE central barrel. We employ the 2015 and 2018 Pb-Pb data sets recorded by ALICE during LHC Run 2

Coherent $ J/\psi$ cross section at midrapidity in Pb-Pb collisions at $\sqrt{s_{\mathrm {NN}}}$ =5.02 TeV in 40-50%, 50-70% and 70-90% centrality classes
Energy
5.02 TeV
System
Pb-Pb
Scope: PWG
PWG-DQ (Dileptons and Quarkonia)
Figure image (.eps)
CrossSection_vs_Npart.eps
Figure image (.pdf)
CrossSection_vs_Npart.pdf
Coherent $ J/\psi$ cross section at midrapidity in Pb-Pb collisions at $\sqrt{s_{\mathrm {NN}}}$ =5.02 TeV in 40-50%, 50-70% and 70-90% centrality classes compared to models
Energy
5.02 TeV
System
Pb-Pb
Scope: PWG
PWG-DQ (Dileptons and Quarkonia)
Figure image (.eps)
CrossSection_vs_Npart_vs_Models_v2.eps
Figure image (.pdf)
CrossSection_vs_Npart_vs_Models_v2.pdf
Coherent $ J/\psi$ cross section vs $p_{T}$ at midrapidity in Pb-Pb collisions at $\sqrt{s_{\mathrm {NN}}}$ =5.02 TeV in 70-90% centrality class
Energy
5.02 TeV
System
Pb-Pb
Scope: PWG
PWG-DQ (Dileptons and Quarkonia)
Figure image (.eps)
CrossSection_vs_Pt_cent70_90.eps
Figure image (.pdf)
CrossSection_vs_Pt_cent70_90.pdf
Coherent $ J/\psi$ cross section vs $p_{T}$ at midrapidity in Pb-Pb collisions at $\sqrt{s_{\mathrm {NN}}}$ =5.02 TeV in 50-70% centrality class
Energy
5.02 TeV
System
Pb-Pb
Scope: PWG
PWG-DQ (Dileptons and Quarkonia)
Figure image (.eps)
CrossSection_vs_Pt_cent50_70.eps
Figure image (.pdf)
CrossSection_vs_Pt_cent50_70.pdf
Low $p_{T}$ $J/\psi$ signal extraction vs $p_{T}$ in 70-90% centrality class measured at midrapidity
Energy
5.02 TeV
System
Pb-Pb
Scope: PWG
PWG-DQ (Dileptons and Quarkonia)
Figure image (.eps)
SignalExtraction_vs_pT_7090.eps
Figure image (.pdf)
SignalExtraction_vs_pT_7090.pdf
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
Energy
5.02 TeV
System
Pb-Pb
Scope: PWG
PWG-DQ (Dileptons and Quarkonia)
Figure image (.eps)
CrossSection_vs_Npart_vs_Forwardy_scaled.eps
Figure image (.pdf)
CrossSection_vs_Npart_vs_Forwardy_scaled.pdf
Ratio of coherent $ J/\psi$ cross section measured in collisions with nuclear overlap over ultraperipheral Pb-Pb collisions at forward and midrapidity
Energy
5.02 TeV
System
Pb-Pb
Scope: PWG
PWG-DQ (Dileptons and Quarkonia)
Figure image (.eps)
RelativeCrossSection_vs_Npart_midy_forwardy_scaled.eps
Figure image (.pdf)
RelativeCrossSection_vs_Npart_midy_forwardy_scaled.pdf
Projection Run 3/4: Coherent $ J/\psi$ yield vs $p_{T}$ at midrapidity in Pb-Pb collisions at $\sqrt{s_{\mathrm {NN}}}$ =5.02 TeV in 30-50% centrality class
Energy
5.02 TeV
System
Pb-Pb
Scope: PWG
PWG-DQ (Dileptons and Quarkonia)
Figure image (.eps)
CoherentJpsi_projectionRun3_cent3050_v3.eps
Figure image (.pdf)
CoherentJpsi_projectionRun3_cent3050_v3.pdf
Projection Run 3/4: Coherent $ J/\psi$ yield vs $p_{T}$ at midrapidity in Pb-Pb collisions at $\sqrt{s_{\mathrm {NN}}}$ =5.02 TeV in 0-10% centrality class
Energy
5.02 TeV
System
Pb-Pb
Scope: PWG
PWG-DQ (Dileptons and Quarkonia)
Figure image (.eps)
CoherentJpsi_projectionRun3_cent010_v3_0.eps
Figure image (.pdf)
CoherentJpsi_projectionRun3_cent010_v3_0.pdf