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[PWGHF] [xic0omegac0] Fix: Calculation of V0 mass fixed #7

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Merged
jinhyunni merged 1 commit into from
Feb 13, 2026
Merged

[PWGHF] [xic0omegac0] Fix: Calculation of V0 mass fixed #7

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12 changes: 11 additions & 1 deletion PWGHF/TableProducer/candidateCreatorXic0Omegac0Qa.cxx
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Original file line number Diff line number Diff line change
Expand Up @@ -312,7 +312,10 @@ struct HfCandidateCreatorXic0Omegac0Qa {
pdgIdOfCharmBaryon = kXiC0;

trackPidOfCascade = o2::track::PID::XiMinus;

massOfCharmBach = o2::constants::physics::MassPiPlus;
massOfV0DauPos = o2::constants::physics::MassProton;
massOfV0DauNeg = o2::constants::physics::MassPionCharged;
massOfV0 = o2::constants::physics::MassLambda;
massOfCascade = o2::constants::physics::MassXiMinus;
} else if (omegapiEnabledDca > 0 || omegapiEnabledKf > 0) {
Expand All @@ -331,7 +334,10 @@ struct HfCandidateCreatorXic0Omegac0Qa {
pdgIdOfCharmBaryon = kOmegaC0;

trackPidOfCascade = o2::track::PID::OmegaMinus;

massOfCharmBach = o2::constants::physics::MassPiPlus;
massOfV0DauPos = o2::constants::physics::MassProton;
massOfV0DauNeg = o2::constants::physics::MassPionCharged;
massOfV0 = o2::constants::physics::MassLambda;
massOfCascade = o2::constants::physics::MassOmegaMinus;
} else if (omegakaEnabledDca > 0 || omegakaEnabledKf > 0) {
Expand All @@ -350,7 +356,10 @@ struct HfCandidateCreatorXic0Omegac0Qa {
pdgIdOfCharmBaryon = kOmegaC0;

trackPidOfCascade = o2::track::PID::OmegaMinus;

massOfCharmBach = o2::constants::physics::MassKPlus;
massOfV0DauPos = o2::constants::physics::MassProton;
massOfV0DauNeg = o2::constants::physics::MassPionCharged;
massOfV0 = o2::constants::physics::MassLambda;
massOfCascade = o2::constants::physics::MassOmegaMinus;
}
Expand Down Expand Up @@ -677,7 +686,8 @@ struct HfCandidateCreatorXic0Omegac0Qa {
// float impactParCharmBachFromCharmBayonZ = impactParameterCharmBach.getZ();

// get v0 invariant mass - from LF Table
float mLambda = straHelper.v0.massLambda; // from LF Table
// float mLambda = straHelper.v0.massLambda; // from LF Table
float mLambda = RecoDecay::m(std::array{pVecV0DauPos, pVecV0DauNeg}, (straHelper.cascade.charge < 0) ? std::array{massOfV0DauPos, massOfV0DauNeg} : std::array{massOfV0DauNeg, massOfV0DauPos});

// get Casc mass - from LF Table
float mCasc = (decayChannel != hf_cand_casc_lf::DecayType2Prong::XiczeroOmegaczeroToXiPi) ? straHelper.cascade.massOmega : straHelper.cascade.massXi;
Expand Down
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