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[PWGHF] Improve the mass window selection and v0 type matched for lambda #12905

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Merged
zhangbiao-phy merged 2 commits into from
Sep 8, 2025
Merged

[PWGHF] Improve the mass window selection and v0 type matched for lambda #12905

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27da821
Update candidateCreatorCharmResoReduced.cxx
zhangbiao-phy Sep 8, 2025
8d41ac2
simplify
zhangbiao-phy Sep 8, 2025
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34 changes: 21 additions & 13 deletions PWGHF/D2H/TableProducer/candidateCreatorCharmResoReduced.cxx
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Original file line number Diff line number Diff line change
Expand Up @@ -246,25 +246,33 @@ struct HfCandidateCreatorCharmResoReduced {
bool isV0Selected(V0RedTable const& candV0)
{
int ptBin = findBin(cfgV0Cuts.binsPtV0, candV0.pt());
const float invMassLow = cfgV0Cuts.cutsV0->get(ptBin, "invMassLow");
const float invMassHigh = cfgV0Cuts.cutsV0->get(ptBin, "invMassHigh");
if (ptBin == -1) {
return false;
}
if (cfgV0Cuts.v0Type == V0Type::K0s) { // K0s
if (!TESTBIT(candV0.v0Type(), V0Type::K0s)) {
return false;
}
if ((candV0.invMassK0s() - MassK0Short) > cfgV0Cuts.cutsV0->get(ptBin, "invMassLow") && (MassK0Short - candV0.invMassK0s()) < cfgV0Cuts.cutsV0->get(ptBin, "invMassLow")) {
if (candV0.invMassK0s() < invMassLow || candV0.invMassK0s() > invMassHigh) {
return false;
}
} else if (cfgV0Cuts.v0Type == V0Type::Lambda) { // Lambda
if (!TESTBIT(candV0.v0Type(), V0Type::Lambda) && !TESTBIT(candV0.v0Type(), V0Type::AntiLambda)) {
return false;
}
if ((candV0.invMassLambda() - MassLambda) > cfgV0Cuts.cutsV0->get(ptBin, "invMassLow") && (MassLambda - candV0.invMassLambda()) < cfgV0Cuts.cutsV0->get(ptBin, "invMassLow")) {
return false;

if (TESTBIT(candV0.v0Type(), V0Type::Lambda)) {
if (candV0.invMassLambda() < invMassLow || candV0.invMassLambda() > invMassHigh) {
return false;
}
}
if ((candV0.invMassAntiLambda() - MassLambda) > cfgV0Cuts.cutsV0->get(ptBin, "invMassLow") && (MassLambda - candV0.invMassAntiLambda()) < cfgV0Cuts.cutsV0->get(ptBin, "invMassLow")) {
return false;

if (TESTBIT(candV0.v0Type(), V0Type::AntiLambda)) {
if (candV0.invMassAntiLambda() < invMassLow || candV0.invMassAntiLambda() > invMassHigh) {
return false;
}
}
} else {
LOG(error) << "Unsupported V0 type for selection: " << cfgV0Cuts.v0Type;
Expand Down Expand Up @@ -378,10 +386,10 @@ struct HfCandidateCreatorCharmResoReduced {
invMassReso = RecoDecay::m(std::array{pVecD, pVecV0Tr}, std::array{MassDPlus, MassK0Short});
}
} else if (cfgV0Cuts.v0Type == V0Type::Lambda) { // Lambda
if (candV0Tr.v0Type() == V0Type::Lambda) {
if (TESTBIT(candV0Tr.v0Type(), V0Type::Lambda)) {
invMassV0Tr = candV0Tr.invMassLambda();
signReso = candD.sign();
} else if (candV0Tr.v0Type() == V0Type::AntiLambda) {
} else if (TESTBIT(candV0Tr.v0Type(), V0Type::AntiLambda)) {
invMassV0Tr = candV0Tr.invMassAntiLambda();
signReso = candD.sign();
isWrongSign = 1;
Expand Down Expand Up @@ -464,9 +472,9 @@ struct HfCandidateCreatorCharmResoReduced {
invMassReso = RecoDecay::m(std::array{pVecD, pVecV0Tr}, std::array{MassDStar, MassK0Short});
}
} else if (cfgV0Cuts.v0Type == V0Type::Lambda) { // Lambda
if (candV0Tr.v0Type() == V0Type::Lambda) {
if (TESTBIT(candV0Tr.v0Type(), V0Type::Lambda)) {
invMassV0Tr = candV0Tr.invMassLambda();
} else if (candV0Tr.v0Type() == V0Type::AntiLambda) {
} else if (TESTBIT(candV0Tr.v0Type(), V0Type::AntiLambda)) {
invMassV0Tr = candV0Tr.invMassAntiLambda();
isWrongSign = 1;
}
Expand Down Expand Up @@ -554,9 +562,9 @@ struct HfCandidateCreatorCharmResoReduced {
invMassReso = RecoDecay::m(std::array{pVecD, pVecV0Tr}, std::array{MassD0, MassK0Short});
}
} else if (cfgV0Cuts.v0Type == V0Type::Lambda) { // Lambda
if (candV0Tr.v0Type() == V0Type::Lambda) {
if (TESTBIT(candV0Tr.v0Type(), V0Type::Lambda)) {
invMassV0Tr = candV0Tr.invMassLambda();
} else if (candV0Tr.v0Type() == V0Type::AntiLambda) {
} else if (TESTBIT(candV0Tr.v0Type(), V0Type::AntiLambda)) {
invMassV0Tr = candV0Tr.invMassAntiLambda();
isWrongSign = 1;
}
Expand Down Expand Up @@ -628,10 +636,10 @@ struct HfCandidateCreatorCharmResoReduced {
invMassReso = RecoDecay::m(std::array{pVecD, pVecV0Tr}, std::array{MassD0Bar, MassK0Short});
}
} else if (cfgV0Cuts.v0Type == V0Type::Lambda) { // Lambda
if (candV0Tr.v0Type() == V0Type::Lambda) {
if (TESTBIT(candV0Tr.v0Type(), V0Type::Lambda)) {
invMassV0Tr = candV0Tr.invMassLambda();
isWrongSign = 1;
} else if (candV0Tr.v0Type() == V0Type::AntiLambda) {
} else if (TESTBIT(candV0Tr.v0Type(), V0Type::AntiLambda)) {
invMassV0Tr = candV0Tr.invMassAntiLambda();
}
if (useDeltaMass) {
Expand Down
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