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[PWGHF] Adding d0xd0 for beauty in derived data creator to match triggers #18337

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Merged
zhangbiao-phy merged 1 commit into from
Oct 16, 2026
Merged

[PWGHF] Adding d0xd0 for beauty in derived data creator to match triggers #18337

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14 changes: 12 additions & 2 deletions PWGHF/D2H/TableProducer/dataCreatorCharmHadPiReduced.cxx
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Original file line number Diff line number Diff line change
Expand Up @@ -202,6 +202,7 @@ struct HfDataCreatorCharmHadPiReduced {
struct : o2::framework::ConfigurableGroup {
Configurable<double> cpaMin{"cpaMin", 0., "Minimum cosine of pointing angle for B candidates"};
Configurable<double> decLenMin{"decLenMin", 0., "Minimum decay length for B candidates"};
Configurable<double> impParProductMax{"impParProductMax", 10., "Maximum product of the impact parameters of the B daughters (cm^2)"};
} bhadronConfigurations;
// HF flags
struct : o2::framework::ConfigurableGroup {
Expand Down Expand Up @@ -1034,8 +1035,9 @@ struct HfDataCreatorCharmHadPiReduced {
/// \param momentum is the B meson momentum
/// \param secondaryVertex is the reconstructed secondary vertex
/// \param collision is the reconstructed collision
/// \param impParProduct is the product of the impact parameters of the B daughters
template <typename T1, typename T2, typename T3>
bool isBHadronSelected(const T1& momentum, const T2& secondaryVertex, const T3& collision)
bool isBHadronSelected(const T1& momentum, const T2& secondaryVertex, const T3& collision, const float impParProduct)
{
// B candidate CPA
if (RecoDecay::cpa(std::array{collision.posX(), collision.posY(), collision.posZ()}, secondaryVertex, momentum) < bhadronConfigurations.cpaMin) {
Expand All @@ -1047,6 +1049,11 @@ struct HfDataCreatorCharmHadPiReduced {
return false;
}

// B candidate product of daughter impact parameters
if (impParProduct > bhadronConfigurations.impParProductMax) {
return false;
}

return true;
}

Expand Down Expand Up @@ -1364,7 +1371,10 @@ struct HfDataCreatorCharmHadPiReduced {
df2.getTrack(0).getPxPyPzGlo(pVecDHad);
df2.getTrack(1).getPxPyPzGlo(pVecDau);
pVecBHad = RecoDecay::pVec(pVecDHad, pVecDau);
if (!isBHadronSelected(pVecBHad, secondaryVertexBHad, collision)) {
o2::track::TrackParCov trackParCovCharmHadAtPv = trackParCovCharmHad;
std::array<float, 2> dcaCharmHad{};
o2::base::Propagator::Instance()->propagateToDCABxByBz({collision.posX(), collision.posY(), collision.posZ()}, trackParCovCharmHadAtPv, 2.f, noMatCorr, &dcaCharmHad);
if (!isBHadronSelected(pVecBHad, secondaryVertexBHad, collision, dcaCharmHad[0] * dcaPion[0])) {
continue;
}
// fill Pion tracks table
Expand Down
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