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[PWGLF] Add RCT flag for event selection #12718

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Merged
skundu692 merged 3 commits into from
Aug 24, 2025
Merged

[PWGLF] Add RCT flag for event selection #12718

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1a0328e
Improve TOF PID selection cut
skundu692 Aug 23, 2025
f679e1b
Improve TOF PID selection cut
skundu692 Aug 23, 2025
426c689
Add RCT flag for event selection
skundu692 Aug 24, 2025
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29 changes: 26 additions & 3 deletions PWGLF/Tasks/Resonances/phispectrapbpbqa.cxx
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Original file line number Diff line number Diff line change
Expand Up @@ -64,6 +64,7 @@
using namespace o2::framework;
using namespace o2::framework::expressions;
using std::array;
using namespace o2::aod::rctsel;
struct phispectrapbpbqa {
double bz = 0.;

Expand All @@ -75,6 +76,13 @@
Configurable<std::string> cfgURL{"cfgURL", "http://alice-ccdb.cern.ch", "Address of the CCDB to browse"};
Configurable<int64_t> nolaterthan{"ccdb-no-later-than", std::chrono::duration_cast<std::chrono::milliseconds>(std::chrono::system_clock::now().time_since_epoch()).count(), "Latest acceptable timestamp of creation for the object"};
} cfgCcdbParam;

struct : ConfigurableGroup {
Configurable<bool> requireRCTFlagChecker{"requireRCTFlagChecker", true, "Check event quality in run condition table"};
Configurable<std::string> cfgEvtRCTFlagCheckerLabel{"cfgEvtRCTFlagCheckerLabel", "CBT_hadronPID", "Evt sel: RCT flag checker label"};
Configurable<bool> cfgEvtRCTFlagCheckerLimitAcceptAsBad{"cfgEvtRCTFlagCheckerLimitAcceptAsBad", true, "Evt sel: RCT flag checker treat Limited Acceptance As Bad"};
} rctCut;

TH3D* hTPCCallib;
TH3D* hTOFCallib;

Expand Down Expand Up @@ -141,13 +149,13 @@
Partition<TrackCandidates> negTracks = aod::track::signed1Pt < cfgCutCharge;

HistogramRegistry histos{"histos", {}, OutputObjHandlingPolicy::AnalysisObject};

RCTFlagsChecker rctChecker;
// Event selection cuts - Alex
// TF1* fMultPVCutLow = nullptr;

void init(o2::framework::InitContext&)
{

rctChecker.init(rctCut.cfgEvtRCTFlagCheckerLabel, rctCut.cfgEvtRCTFlagCheckerLimitAcceptAsBad);
histos.add("hphiSE", "hphiSE", HistType::kTHnSparseF, {cnfgaxis.configThnAxisInvMass, cnfgaxis.configThnAxisPt, cnfgaxis.configThnAxisCentrality, axisOccupancy, cnfgaxis.configThnAxisSector}, true);
histos.add("hphiME", "hphiME", HistType::kTHnSparseF, {cnfgaxis.configThnAxisInvMass, cnfgaxis.configThnAxisPt, cnfgaxis.configThnAxisCentrality, axisOccupancy, cnfgaxis.configThnAxisSector}, true);
histos.add("hphiGen", "hphiGen", HistType::kTHnSparseF, {cnfgaxis.configThnAxisInvMass, cnfgaxis.configThnAxisPt, cnfgaxis.configThnAxisCentrality, axisOccupancy}, true);
Expand Down Expand Up @@ -213,10 +221,10 @@
template <typename T>
bool selectionPIDpTdependent(const T& candidate, double nsigmaTPC, double nsigmaTOF)
{
if (candidate.p() < 0.7 && TMath::Abs(nsigmaTPC) < nsigmaCutTPC) {

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return true;
}
if (candidate.p() > 0.7 && candidate.hasTOF() && TMath::Abs(nsigmaTPC) < nsigmaCutTPC) {

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if (candidate.p() > 0.7 && candidate.p() < 1.6 && candidate.beta() > cfgCutTOFBeta && nsigmaTOF > -5.0 && nsigmaTOF < 10.0) {
return true;
}
Expand Down Expand Up @@ -246,10 +254,10 @@
bool selectionPID(const T& candidate, double nsigmaTPC, double nsigmaTOF)
{
if (applyTOF) {
if (!candidate.hasTOF() && TMath::Abs(nsigmaTPC) < nsigmaCutTPC) {

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return true;
}
if (candidate.p() > 0.5 && candidate.hasTOF() && TMath::Abs(nsigmaTPC) < nsigmaCutTPC) {

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if (candidate.p() > 0.5 && candidate.p() < 1.6 && candidate.beta() > cfgCutTOFBeta && nsigmaTOF > -5.0 && nsigmaTOF < 10.0) {
return true;
}
Expand All @@ -272,7 +280,7 @@
return true;
}
}
} else if (TMath::Abs(nsigmaTPC) < nsigmaCutTPC) {

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return true;
}
return false;
Expand All @@ -289,7 +297,7 @@
pz2 = candidate2.pz();
p1 = candidate1.p();
p2 = candidate2.p();
angle = TMath::ACos((pt1 * pt2 + pz1 * pz2) / (p1 * p2));

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if (isDeepAngle && angle < cfgDeepAngle) {
return false;
}
Expand Down Expand Up @@ -325,6 +333,11 @@
if (!collision.sel8() || !collision.selection_bit(aod::evsel::kNoTimeFrameBorder) || !collision.selection_bit(aod::evsel::kNoITSROFrameBorder) || !collision.selection_bit(aod::evsel::kNoSameBunchPileup) || !collision.selection_bit(aod::evsel::kIsGoodZvtxFT0vsPV) || !collision.selection_bit(o2::aod::evsel::kNoCollInTimeRangeStandard) || !collision.selection_bit(o2::aod::evsel::kIsGoodITSLayersAll)) {
return;
}
if (rctCut.requireRCTFlagChecker) {
if (!rctChecker(collision)) {
return;
}
}
auto centrality = collision.centFT0C();
int occupancy = collision.trackOccupancyInTimeRange();
histos.fill(HIST("hCentrality"), centrality);
Expand Down Expand Up @@ -461,7 +474,7 @@
KaonMinus = ROOT::Math::PxPyPzMVector(track2.px(), track2.py(), track2.pz(), massKa);
PhiMesonMother = KaonPlus + KaonMinus;

if (TMath::Abs(PhiMesonMother.Rapidity()) < 0.5) {

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histos.fill(HIST("hphiSE"), PhiMesonMother.M(), PhiMesonMother.Pt(), centrality, occupancy, passsector);
}
}
Expand All @@ -481,6 +494,11 @@
if (!collision2.sel8() || !collision2.selection_bit(aod::evsel::kNoTimeFrameBorder) || !collision2.selection_bit(aod::evsel::kNoITSROFrameBorder) || !collision2.selection_bit(aod::evsel::kNoSameBunchPileup) || !collision2.selection_bit(aod::evsel::kIsGoodZvtxFT0vsPV) || !collision2.selection_bit(o2::aod::evsel::kNoCollInTimeRangeStandard) || !collision2.selection_bit(o2::aod::evsel::kIsGoodITSLayersAll)) {
continue;
}
if (rctCut.requireRCTFlagChecker) {
if (!rctChecker(collision1) || !rctChecker(collision2)) {
continue;
}
}
int occupancy = collision1.trackOccupancyInTimeRange();
auto centrality = collision1.centFT0C();
for (auto& [track1, track2] : o2::soa::combinations(o2::soa::CombinationsFullIndexPolicy(tracks1, tracks2))) {
Expand Down Expand Up @@ -546,7 +564,7 @@
KaonPlus = ROOT::Math::PxPyPzMVector(track1.px(), track1.py(), track1.pz(), massKa);
KaonMinus = ROOT::Math::PxPyPzMVector(track2.px(), track2.py(), track2.pz(), massKa);
PhiMesonMother = KaonPlus + KaonMinus;
if (TMath::Abs(PhiMesonMother.Rapidity()) < 0.5) {

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histos.fill(HIST("hphiME"), PhiMesonMother.M(), PhiMesonMother.Pt(), centrality, occupancy, passsector);
}
}
Expand Down Expand Up @@ -574,7 +592,7 @@
histos.fill(HIST("hMC"), 4);
continue;
}
if (TMath::Abs(RecCollision.posZ()) > cfgCutVertex) {

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histos.fill(HIST("hMC"), 6);
continue;
}
Expand All @@ -587,8 +605,13 @@
histos.fill(HIST("hMC"), 8);
continue;
}

histos.fill(HIST("hMC"), 9);
if (rctCut.requireRCTFlagChecker) {
if (!rctChecker(RecCollision)) {
continue;
}
}
histos.fill(HIST("hMC"), 10);
auto centrality = RecCollision.centFT0C();
int occupancy = RecCollision.trackOccupancyInTimeRange();
histos.fill(HIST("hOccupancy"), occupancy, centrality);
Expand Down Expand Up @@ -680,7 +703,7 @@

const auto mctrack1 = track1.mcParticle();
const auto mctrack2 = track2.mcParticle();
int track1PDG = TMath::Abs(mctrack1.pdgCode());

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int track2PDG = TMath::Abs(mctrack2.pdgCode());
if (!mctrack1.isPhysicalPrimary()) {
continue;
Expand Down
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