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Polarization of photoproduced J/psi in Pb-Pb (QM2023)

Description

Coherent photo produced J/psi polarization with nuclear overlap collisions using Run 2 data samples ( LHC 2015 + 2018 period) in Pb-Pb collisions

Invariant mass distribution of dimuon pairs for 0.0 < |cos\theta| < 0.1 in Pb-Pb collsions at 5.02 TeV
Energy
5.02 TeV
System
Pb-Pb
Scope: PWG
PWG-DQ (Dileptons and Quarkonia)
Figure image (.eps)
invmass_costheta_mod0to0p1.eps
Figure image (.pdf)
invmass_costheta_mod0to0p1.pdf
Invariant mass distribution of dimuon pairs for 0.2 < |cos\theta| < 0.3 in Pb-Pb collsions at 5.02 TeV
Energy
5.02 TeV
System
Pb-Pb
Scope: PWG
PWG-DQ (Dileptons and Quarkonia)
Figure image (.eps)
invmass_costheta_mod0p2to0p3.eps
Figure image (.pdf)
invmass_costheta_mod0p2to0p3.pdf
Invariant mass distribution of dimuon pairs for 0.5 < |cos\theta| < 0.6 in Pb-Pb collsions at 5.02 TeV
Energy
5.02 TeV
System
Pb-Pb
Scope: PWG
PWG-DQ (Dileptons and Quarkonia)
Figure image (.eps)
invmass_costheta_mod0p5to0p6.eps
Figure image (.pdf)
invmass_costheta_mod0p5to0p6.pdf
dNdcostheta vs costheta in Pb--Pb collisions at 5.02 TeV using Helicity Frame
Energy
5.02 TeV
System
Pb-Pb
Scope: PWG
PWG-DQ (Dileptons and Quarkonia)
Figure image (.eps)
dncosthetavscostheta_1dfit_jpsi_helicityframe.eps
Figure image (.pdf)
dncosthetavscostheta_1dfit_jpsi_helicityframe.pdf
Comparison of $\lambda_{\theta}$ with UPC measurement
Energy
5.02 TeV
System
Pb-Pb
Scope: PWG
PWG-DQ (Dileptons and Quarkonia)
Figure image (.eps)
comparison_lambdtheta_withupc.eps
Figure image (.pdf)
comparison_lambdtheta_withupc.pdf