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[PWGDQ] Refactor the AnalysisDileptonTrackTrack and add process function for … #18673

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Merged
iarsene merged 4 commits into from
Nov 9, 2026
Merged

[PWGDQ] Refactor the AnalysisDileptonTrackTrack and add process function for … #18673

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25874b1
Refactor the AnalysisDileptonTrackTrack and add process function for …
Nov 9, 2026
25becd9
Fix macOS errors
Nov 9, 2026
337e666
Please consider the following formatting changes
alibuild Nov 9, 2026
348c4fd
Merge pull request #37 from alibuild/alibot-cleanup-18673
iarsene Nov 9, 2026
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24 changes: 21 additions & 3 deletions PWGDQ/Core/VarManager.h
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Original file line number Diff line number Diff line change
Expand Up @@ -156,16 +156,19 @@ class VarManager : public TObject

enum PairCandidateType {
// TODO: need to agree on a scheme to incorporate all various hypotheses (e.g. e - mu, jpsi - K+, Jpsi - pipi,...)
kDecayToEE = 0, // e.g. J/psi -> e+ e-
kDecayToMuMu, // e.g. J/psi -> mu+ mu-
kDecayToPiPi,
kDecayToEE = 0, // e.g. J/psi -> e+ e-
kDecayToMuMu, // e.g. J/psi -> mu+ mu-
kDecayToPiPi, // decay channel to pi+ pi-
kDecayToKchKch, // decay channel to K+ K-
kDecayToPrAPr, // decay channel to p+ p-
kElectronMuon, // e.g. Electron - muon correlations
kBcToThreeMuons, // e.g. Bc -> mu+ mu- mu+
kBtoJpsiEEK, // e.g. B+ -> e+ e- K+
kJpsiEEProton, // e.g. Jpsi-proton correlation, Jpsi to e+e-
kXtoJpsiPiPi, // e.g. X(3872) -> J/psi pi+ pi-
kPsi2StoJpsiPiPi, // e.g. Psi(2S) -> J/psi pi+ pi-
kChictoJpsiEE, // e.g. Chi_c1 -> J/psi e+ e-
kNonResonantToKpKmPiPi, // e.g. J/psi -> K+ K- pi+ pi+
kDstarToD0KPiPi, // e.g. D*+ -> D0 pi+ -> K- pi+ pi+
kTripleCandidateToEEPhoton, // e.g. chi_c -> e+ e- photon or pi0 -> e+ e- photon
kDecayToKPi, // e.g. D0 -> K+ pi- or cc.
Expand Down Expand Up @@ -3841,6 +3844,16 @@ void VarManager::FillPair(T1 const& t1, T2 const& t2, float* values)
m2 = o2::constants::physics::MassPionCharged;
}

if constexpr (pairType == kDecayToKchKch) {
m1 = o2::constants::physics::MassKaonCharged;
m2 = o2::constants::physics::MassKaonCharged;
}

if constexpr (pairType == kDecayToPrAPr) {
m1 = o2::constants::physics::MassProton;
m2 = o2::constants::physics::MassProton;
}

if constexpr (pairType == kDecayToKPi) {
m1 = o2::constants::physics::MassKaonCharged;
m2 = o2::constants::physics::MassPionCharged;
Expand Down Expand Up @@ -6910,6 +6923,11 @@ void VarManager::FillDileptonTrackTrack(T1 const& dilepton, T2 const& hadron1, T
hadronMass1 = o2::constants::physics::MassElectron;
hadronMass2 = o2::constants::physics::MassElectron;
}
if (candidateType == kNonResonantToKpKmPiPi) {
defaultDileptonMass = dilepton.mass();
hadronMass1 = o2::constants::physics::MassPionCharged;
hadronMass2 = o2::constants::physics::MassPionCharged;
}

ROOT::Math::PtEtaPhiMVector v1(dilepton.pt(), dilepton.eta(), dilepton.phi(), dilepton.mass());
ROOT::Math::PtEtaPhiMVector v2(hadron1.pt(), hadron1.eta(), hadron1.phi(), hadronMass1);
Expand Down
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