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PWGLF : improvement of combinatorial bkg. to reduce CPU usage #8034

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Merged
BongHwi merged 1 commit into from
Oct 17, 2024
Merged

PWGLF : improvement of combinatorial bkg. to reduce CPU usage #8034

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35 changes: 1 addition & 34 deletions PWGLF/Tasks/Resonances/kstarpbpb.cxx
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Original file line number Diff line number Diff line change
Expand Up @@ -105,7 +105,6 @@ struct kstarpbpb {
Configurable<float> confMaxRot{"confMaxRot", 7.0 * TMath::Pi() / 6.0, "Maximum of rotation"};
Configurable<int> nBkgRotations{"nBkgRotations", 9, "Number of rotated copies (background) per each original candidate"};
Configurable<bool> fillRotation{"fillRotation", true, "fill rotation"};
Configurable<bool> fillRotation1{"fillRotation1", false, "fill rotation"};
Configurable<bool> like{"like", true, "fill rotation"};
Configurable<bool> fillOccupancy{"fillOccupancy", false, "fill Occupancy"};
Configurable<int> cfgOccupancyCut{"cfgOccupancyCut", 500, "Occupancy cut"};
Expand Down Expand Up @@ -194,9 +193,6 @@ struct kstarpbpb {
if (fillRotation) {
histos.add("hRotation", "hRotation", kTH1F, {{360, 0.0, 2.0 * TMath::Pi()}});
}
if (fillRotation1) {
histos.add("hRotation1", "hRotation1", kTH1F, {{360, 0.0, 2.0 * TMath::Pi()}});
}
// Event selection cut additional - Alex
if (additionalEvsel) {
fMultPVCutLow = new TF1("fMultPVCutLow", "[0]+[1]*x+[2]*x*x+[3]*x*x*x - 2.5*([4]+[5]*x+[6]*x*x+[7]*x*x*x+[8]*x*x*x*x)", 0, 100);
Expand Down Expand Up @@ -316,7 +312,7 @@ struct kstarpbpb {
ConfigurableAxis axisEPAngle{"axisEPAngle", {9, -TMath::Pi() / 2, TMath::Pi() / 2}, "event plane angle"};

using BinningTypeVertexContributor = ColumnBinningPolicy<aod::collision::PosZ, aod::cent::CentFT0C, aod::epcalibrationtable::PsiFT0C>;
ROOT::Math::PxPyPzMVector KstarMother, daughter1, daughter2, kaonrot, kstarrot, pionrot, kstarrot1;
ROOT::Math::PxPyPzMVector KstarMother, daughter1, daughter2, kaonrot, kstarrot;

void processSameEvent(EventCandidates::iterator const& collision, TrackCandidates const& tracks, aod::BCs const&)
{
Expand Down Expand Up @@ -501,35 +497,6 @@ struct kstarpbpb {
histos.fill(HIST("hSparseV2SASameEventRotational_V2"), kstarrot.M(), kstarrot.Pt(), v2Rot, centrality);
}
}
if (fillRotation1) {
for (int nrotbkg = 0; nrotbkg < nBkgRotations; nrotbkg++) {
auto anglestart = confMinRot;
auto angleend = confMaxRot;
auto anglestep = (angleend - anglestart) / (1.0 * (nBkgRotations - 1));
auto rotangle = anglestart + nrotbkg * anglestep;
histos.fill(HIST("hRotation1"), rotangle);
if (track1kaon && track2pion) {
auto rotpionPx = track2.px() * std::cos(rotangle) - track2.py() * std::sin(rotangle);
auto rotpionPy = track2.px() * std::sin(rotangle) + track2.py() * std::cos(rotangle);
pionrot = ROOT::Math::PxPyPzMVector(rotpionPx, rotpionPy, track2.pz(), massPi);
daughter2 = ROOT::Math::PxPyPzMVector(track1.px(), track1.py(), track1.pz(), massKa);
} else if (track1pion && track2kaon) {
auto rotpionPx = track1.px() * std::cos(rotangle) - track1.py() * std::sin(rotangle);
auto rotpionPy = track1.px() * std::sin(rotangle) + track1.py() * std::cos(rotangle);
pionrot = ROOT::Math::PxPyPzMVector(rotpionPx, rotpionPy, track1.pz(), massPi);
daughter2 = ROOT::Math::PxPyPzMVector(track2.px(), track2.py(), track2.pz(), massKa);
} else {
continue;
}
kstarrot1 = pionrot + daughter2;
if (TMath::Abs(kstarrot1.Rapidity()) > confRapidity) {
continue;
}
auto phiminuspsiRot1 = GetPhiInRange(kstarrot1.Phi() - psiFT0C);
auto v2Rot1 = TMath::Cos(2.0 * phiminuspsiRot1);
histos.fill(HIST("hSparseV2SASameEventRotational1_V2"), kstarrot1.M(), kstarrot1.Pt(), v2Rot1, centrality);
}
}
}
}
}
Expand Down