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[PWGHF] Fix a bug for the sign of charm hadrons in the charm flow task #14371

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Merged
zhangbiao-phy merged 1 commit into from
Jan 2, 2026
+6 −6
Merged

[PWGHF] Fix a bug for the sign of charm hadrons in the charm flow task #14371

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12 changes: 6 additions & 6 deletions PWGHF/D2H/Tasks/taskFlowCharmHadrons.cxx
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Original file line number Diff line number Diff line change
Expand Up @@ -530,11 +530,10 @@ struct HfTaskFlowCharmHadrons {
float signCand = 0.;
std::vector<float> outputMl = {-999., -999.};
if constexpr (std::is_same_v<T1, CandDsData> || std::is_same_v<T1, CandDsDataWMl>) {
auto trackprong0 = candidate.template prong0_as<Trk>();
signCand = trackprong0.sign();
switch (Channel) {
case DecayChannel::DsToKKPi:
massCand = HfHelper::invMassDsToKKPi(candidate);
signCand = 1;
if constexpr (std::is_same_v<T1, CandDsDataWMl>) {
for (unsigned int iclass = 0; iclass < classMl->size(); iclass++) {
outputMl[iclass] = candidate.mlProbDsToKKPi()[classMl->at(iclass)];
Expand All @@ -543,6 +542,7 @@ struct HfTaskFlowCharmHadrons {
break;
case DecayChannel::DsToPiKK:
massCand = HfHelper::invMassDsToPiKK(candidate);
signCand = -1;
if constexpr (std::is_same_v<T1, CandDsDataWMl>) {
for (unsigned int iclass = 0; iclass < classMl->size(); iclass++) {
outputMl[iclass] = candidate.mlProbDsToPiKK()[classMl->at(iclass)];
Expand Down Expand Up @@ -585,11 +585,10 @@ struct HfTaskFlowCharmHadrons {
break;
}
} else if constexpr (std::is_same_v<T1, CandLcData> || std::is_same_v<T1, CandLcDataWMl>) {
auto trackprong0 = candidate.template prong0_as<Trk>();
signCand = trackprong0.sign();
switch (Channel) {
case DecayChannel::LcToPKPi:
massCand = HfHelper::invMassLcToPKPi(candidate);
signCand = 1;
if constexpr (std::is_same_v<T1, CandLcDataWMl>) {
for (unsigned int iclass = 0; iclass < classMl->size(); iclass++) {
outputMl[iclass] = candidate.mlProbLcToPKPi()[classMl->at(iclass)];
Expand All @@ -598,6 +597,7 @@ struct HfTaskFlowCharmHadrons {
break;
case DecayChannel::LcToPiKP:
massCand = HfHelper::invMassLcToPiKP(candidate);
signCand = -1;
if constexpr (std::is_same_v<T1, CandLcDataWMl>) {
for (unsigned int iclass = 0; iclass < classMl->size(); iclass++) {
outputMl[iclass] = candidate.mlProbLcToPiKP()[classMl->at(iclass)];
Expand All @@ -608,11 +608,10 @@ struct HfTaskFlowCharmHadrons {
break;
}
} else if constexpr (std::is_same_v<T1, CandXicData> || std::is_same_v<T1, CandXicDataWMl>) {
auto trackprong0 = candidate.template prong0_as<Trk>();
signCand = trackprong0.sign();
switch (Channel) {
case DecayChannel::XicToPKPi:
massCand = HfHelper::invMassXicToPKPi(candidate);
signCand = 1;
if constexpr (std::is_same_v<T1, CandXicDataWMl>) {
for (unsigned int iclass = 0; iclass < classMl->size(); iclass++) {
outputMl[iclass] = candidate.mlProbXicToPKPi()[classMl->at(iclass)];
Expand All @@ -621,6 +620,7 @@ struct HfTaskFlowCharmHadrons {
break;
case DecayChannel::XicToPiKP:
massCand = HfHelper::invMassXicToPiKP(candidate);
signCand = -1;
if constexpr (std::is_same_v<T1, CandXicDataWMl>) {
for (unsigned int iclass = 0; iclass < classMl->size(); iclass++) {
outputMl[iclass] = candidate.mlProbXicToPiKP()[classMl->at(iclass)];
Expand Down
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