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[PWGCF] Added a switch for separating events by the magnetic field polarity #12814

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Merged
victor-gonzalez merged 4 commits into from
Sep 1, 2025
Merged

[PWGCF] Added a switch for separating events by the magnetic field polarity #12814

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9a7f32a
Added a switch for separating events by the magnetic field polarity
JStaa Sep 1, 2025
20f9939
Fixed a linting error
JStaa Sep 1, 2025
c131e84
Please consider the following formatting changes
alibuild Sep 1, 2025
e7836c6
Merge pull request #39 from alibuild/alibot-cleanup-12814
JStaa Sep 1, 2025
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15 changes: 15 additions & 0 deletions PWGCF/MultiparticleCorrelations/Tasks/threeParticleCorrelations.cxx
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Original file line number Diff line number Diff line change
Expand Up @@ -132,6 +132,7 @@ struct ThreeParticleCorrelations {
SameKindPair<MyFilteredMCGenCollisions, MyFilteredMCParticles, BinningTypeMC> pairMC{collBinningMC, 5, -1, &cache};

// Process configurables
Configurable<int> confBfieldSwitch{"confBfieldSwitch", 0, "Switch for the detector magnetic field (1 if Pos, -1 if Neg, 0 if both)"};
Configurable<bool> confFakeV0Switch{"confFakeV0Switch", false, "Switch for the fakeV0Filter function"};
Configurable<bool> confRDSwitch{"confRDSwitch", true, "Switch for the radialDistanceFilter function"};

Expand Down Expand Up @@ -174,6 +175,7 @@ struct ThreeParticleCorrelations {
rQARegistry.add("hEventCentrality", "hEventCentrality", {HistType::kTH1D, {{centralityAxis}}});
rQARegistry.add("hEventCentrality_MC", "hEventCentrality_MC", {HistType::kTH1D, {{centralityAxis}}});
rQARegistry.add("hEventZvtx", "hEventZvtx", {HistType::kTH1D, {{zvtxAxis}}});
rQARegistry.add("hEventBfield", "hEventBfield", {HistType::kTH1D, {{2, -1, 1}}});
rQARegistry.add("hTrackPt", "hTrackPt", {HistType::kTH1D, {{100, 0, 4}}});
rQARegistry.add("hTrackEta", "hTrackEta", {HistType::kTH1D, {{100, -1, 1}}});
rQARegistry.add("hTrackPhi", "hTrackPhi", {HistType::kTH1D, {{100, (-1. / 2) * constants::math::PI, (5. / 2) * constants::math::PI}}});
Expand Down Expand Up @@ -334,8 +336,15 @@ struct ThreeParticleCorrelations {

auto bc = collision.bc_as<aod::BCsWithTimestamps>();
auto bField = getMagneticField(bc.timestamp());
if (confBfieldSwitch != 0) {
if (std::signbit(static_cast<double>(confBfieldSwitch)) != std::signbit(bField)) {
return;
}
}

rQARegistry.fill(HIST("hEventCentrality"), collision.centFT0C());
rQARegistry.fill(HIST("hEventZvtx"), collision.posZ());
rQARegistry.fill(HIST("hEventBfield"), bField);

// Start of the Track QA
for (const auto& track : tracks) {
Expand Down Expand Up @@ -455,6 +464,12 @@ struct ThreeParticleCorrelations {

auto bc = coll_1.bc_as<aod::BCsWithTimestamps>();
auto bField = getMagneticField(bc.timestamp());
if (confBfieldSwitch != 0) {
if (std::signbit(static_cast<double>(confBfieldSwitch)) != std::signbit(bField)) {
return;
}
}

for (const auto& [trigger, associate] : soa::combinations(soa::CombinationsFullIndexPolicy(v0_1, track_2))) {
if (v0Filters(coll_1, trigger, tracks) && trackFilters(associate)) {
if (radialDistanceFilter(trigger, associate, bField, true) && fakeV0Filter(trigger, associate)) {
Expand Down
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