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Measurement of dielectron production in central Pb--Pb collisions at $\mathbf{\sqrt{{\textit{s}}_{\mathrm{NN}}}}$ = 2.76 TeV

Impact of hadron contamination in dielectron spectrum
Energy
2.76 TeV
System
Pb-Pb
Scope: PWG
PWG-DQ (Dileptons and Quarkonia)
Figure image (.eps)
2018-Aug-08-HadronContaminationInMassSpectrum.eps
Figure image (.pdf)
2018-Aug-08-HadronContaminationInMassSpectrum.pdf
Average fraction of shared ITS clusters
Energy
2.76 TeV
System
Pb-Pb
Scope: PWG
PWG-DQ (Dileptons and Quarkonia)
Figure image (.eps)
2018-Aug-08-AverageFracSharedCls.eps
Figure image (.pdf)
2018-Aug-08-AverageFracSharedCls.pdf
Pair reconstruction efficiency
Energy
2.76 TeV
System
Pb-Pb
Scope: PWG
PWG-DQ (Dileptons and Quarkonia)
Figure image (.eps)
2018-Aug-08-PairEfficiency.eps
Figure image (.pdf)
2018-Aug-08-PairEfficiency.pdf
R_{gamma}: real vs. virtual photons
Energy
2.76 TeV
System
Pb-Pb
Scope: PWG
PWG-DQ (Dileptons and Quarkonia)
Figure image (.eps)
2018-Aug-08-RGammaComparison.eps
Figure image (.pdf)
2018-Aug-08-RGammaComparison.pdf
Multi-gaussian fit of TPC signal (dE/dx - dE_{e}/dx) / sigma
Energy
2.76 TeV
System
Pb-Pb
Scope: PWG
PWG-DQ (Dileptons and Quarkonia)
Figure image (.eps)
2018-Aug-09-multipleGaussianFit.eps
Figure image (.pdf)
2018-Aug-09-multipleGaussianFit.pdf
Electron Purity vs momentum
Energy
2.76 TeV
System
Pb-Pb
Scope: PWG
PWG-DQ (Dileptons and Quarkonia)
Figure image (.eps)
2018-Aug-09-ePurity.eps
Figure image (.pdf)
2018-Aug-09-ePurity.pdf
psi_{V} for the main dielectron sources
Energy
2.76 TeV
System
Pb-Pb
Scope: PWG
PWG-DQ (Dileptons and Quarkonia)
Figure image (.eps)
2018-Aug-09-psiV.eps
Figure image (.pdf)
2018-Aug-09-psiV.pdf
psi_{V}-mass correlation
Energy
2.76 TeV
System
Pb-Pb
Scope: PWG
PWG-DQ (Dileptons and Quarkonia)
Figure image (.eps)
2018-Aug-09-psiV_Mass.eps
Figure image (.pdf)
2018-Aug-09-psiV_Mass.pdf
Rejection efficiency of conversion electrons
Energy
2.76 TeV
System
Pb-Pb
Scope: PWG
PWG-DQ (Dileptons and Quarkonia)
Figure image (.eps)
2018-Aug-09-rejProbabilityConversionElectrons.eps
Figure image (.pdf)
2018-Aug-09-rejProbabilityConversionElectrons.pdf
Rejection probability of signal tracks
Energy
2.76 TeV
System
Pb-Pb
Scope: PWG
PWG-DQ (Dileptons and Quarkonia)
Figure image (.eps)
2018-Aug-09-rejProbabilityPrimaryElectrons.eps
Figure image (.pdf)
2018-Aug-09-rejProbabilityPrimaryElectrons.pdf
Extraction of virtual direct photons for 1 GeV/c < p_{T} < 2 GeV/c
Energy
2.76 TeV
System
Pb-Pb
Scope: PWG
PWG-DQ (Dileptons and Quarkonia)
Figure image (.eps)
2018-Aug-09-fitDirectPhotons_pt12.eps
Figure image (.pdf)
2018-Aug-09-fitDirectPhotons_pt12.pdf
Extraction of virtual direct photons for 2 GeV/c < p_{T} < 4 GeV/c
Energy
2.76 TeV
System
Pb-Pb
Scope: PWG
PWG-DQ (Dileptons and Quarkonia)
Figure image (.eps)
2018-Aug-09-fitDirectPhotons_pt24.eps
Figure image (.pdf)
2018-Aug-09-fitDirectPhotons_pt24.pdf
signal-to-background
Energy
2.76 TeV
System
Pb-Pb
Scope: PWG
PWG-DQ (Dileptons and Quarkonia)
Figure image (.eps)
2018-Aug-09-SignalTobackground.eps
Figure image (.pdf)
2018-Aug-09-SignalTobackground.pdf
unlikesign and likesign invariant-mass spectra
Energy
2.76 TeV
System
Pb-Pb
Scope: PWG
PWG-DQ (Dileptons and Quarkonia)
Figure image (.eps)
2018-Aug-09-Unlikesign_Likesign.eps
Figure image (.pdf)
2018-Aug-09-Unlikesign_Likesign.pdf
R-factor
Energy
2.76 TeV
System
Pb-Pb
Scope: PWG
PWG-DQ (Dileptons and Quarkonia)
Figure image (.eps)
2018-Aug-09-Rfactor.eps
Figure image (.pdf)
2018-Aug-09-Rfactor.pdf
Relative contribution of conversion electrons to dielectron spectrum
Energy
2.76 TeV
System
Pb-Pb
Scope: PWG
PWG-DQ (Dileptons and Quarkonia)
Figure image (.eps)
2018-Aug-09-relConversionContribution.eps
Figure image (.pdf)
2018-Aug-09-relConversionContribution.pdf
Residual contribution of conversion electrons to the dielectron spectrum
Energy
2.76 TeV
System
Pb-Pb
Scope: PWG
PWG-DQ (Dileptons and Quarkonia)
Figure image (.eps)
2018-Aug-09-conversionContribution.eps
Figure image (.pdf)
2018-Aug-09-conversionContribution.pdf
Pair reconstruction efficiency
Energy
2.76 TeV
System
Pb-Pb
Scope: PWG
PWG-DQ (Dileptons and Quarkonia)
Figure image (.eps)
2018-Aug-09-pairEfficiency.eps
Figure image (.pdf)
2018-Aug-09-pairEfficiency.pdf
dielectron invariant-mass spectrum vs "vacuum" cocktail (p_{T}-integrated)
Energy
2.76 TeV
System
Pb-Pb
Scope: PWG
PWG-DQ (Dileptons and Quarkonia)
Figure image (.eps)
2018-Aug-24-cocktailComparison.eps
Figure image (.pdf)
2018-08-29-2018-Aug-24-cocktailComparison07_30_05.pdf
charm-anticharm angular decorrelation
Energy
2.76 TeV
System
Pb-Pb
Scope: PWG
PWG-DQ (Dileptons and Quarkonia)
Figure image (.eps)
2018-Aug-24-randomCharmCorrelations.eps
Figure image (.pdf)
2018-08-31-2018-Aug-24-randomCharmCorrelations03_25_37.pdf
Thermal dielectrons (R.Rapp and PHSD models)
Energy
2.76 TeV
System
Pb-Pb
Scope: PWG
PWG-DQ (Dileptons and Quarkonia)
Figure image (.eps)
2019-02-06-TheoryComparison.eps
Figure image (.pdf)
2019-02-06-TheoryComparison09_58_53.pdf