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[PWGLF] f0980pbpbanalysis.cxx: adding ITS PID #18486

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Merged
dmallick2 merged 5 commits into from
Oct 29, 2026
+84 −54
Merged

[PWGLF] f0980pbpbanalysis.cxx: adding ITS PID #18486

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c19dba0
adding ITS PID
jikim1290 Oct 28, 2026
0501d14
fix megalinter
jikim1290 Oct 28, 2026
45f9ebf
fix megalinter
jikim1290 Oct 28, 2026
a1578c3
fix cod checker
jikim1290 Oct 28, 2026
0f2cc90
fix
jikim1290 Oct 28, 2026
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138 changes: 84 additions & 54 deletions PWGLF/Tasks/Resonances/f0980pbpbanalysis.cxx
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Original file line number Diff line number Diff line change
Expand Up @@ -17,6 +17,7 @@
#include "Common/DataModel/Centrality.h"
#include "Common/DataModel/EventSelection.h"
#include "Common/DataModel/Multiplicity.h"
#include "Common/DataModel/PIDResponseITS.h"
#include "Common/DataModel/PIDResponseTOF.h"
#include "Common/DataModel/PIDResponseTPC.h"
#include "Common/DataModel/Qvectors.h"
Expand All @@ -38,6 +39,7 @@
#include <Framework/OutputObjHeader.h>
#include <Framework/SliceCache.h>
#include <Framework/runDataProcessing.h>
#include <ReconstructionDataFormats/PID.h>

#include <Math/Vector4D.h> // IWYU pragma: keep (do not replace with Math/Vector4Dfwd.h)
#include <Math/Vector4Dfwd.h>
Expand Down Expand Up @@ -68,8 +70,9 @@ struct F0980pbpbanalysis {
{},
OutputObjHandlingPolicy::AnalysisObject};

Service<o2::ccdb::BasicCCDBManager> ccdb;
Service<o2::ccdb::BasicCCDBManager> ccdb{};
o2::ccdb::CcdbApi ccdbApi;
o2::aod::ITSResponse itsResponse;

Configurable<std::string> cfgURL{"cfgURL", "http://alice-ccdb.cern.ch", "Address of the CCDB to browse"};
Configurable<int64_t> ccdbNoLaterThan{"ccdbNoLaterThan", std::chrono::duration_cast<std::chrono::milliseconds>(std::chrono::system_clock::now().time_since_epoch()).count(), "Latest acceptable timestamp of creation for the object"};
Expand Down Expand Up @@ -130,6 +133,8 @@ struct F0980pbpbanalysis {
Configurable<double> cfgPIDMaxTPCnSigmaPion{"cfgPIDMaxTPCnSigmaPion", 5.0, "TPC nSigma cut for Pion"}; // TPC
Configurable<double> cfgPIDMaxTPCnSigmaPionS{"cfgPIDMaxTPCnSigmaPionS", 3.0, "TPC nSigma cut for Pion as a standalone"};
Configurable<double> cfgPIDMaxTiednSigmaPion{"cfgPIDMaxTiednSigmaPion", 3.0, "Combined nSigma cut for Pion"};
Configurable<bool> cfgPIDITSFlag{"cfgPIDITSFlag", true, "PID ITS flag"};
Configurable<double> cfgPIDMaxITSnSigmaPion{"cfgPIDMaxITSnSigmaPion", 3.0, "ITS nSigma selection"};
} PIDConfig;

// Flow Configurables
Expand Down Expand Up @@ -198,27 +203,27 @@ struct F0980pbpbanalysis {
int nmode = FlowConfig.cfgQvecNMods;
static constexpr double QvecAmpMin = 1e-4;

int detId;
int refAId;
int refBId;
int detId = 0;
int refAId = 4;
int refBId = 5;

int qVecDetInd;
int qVecRefAInd;
int qVecRefBInd;
int qVecDetInd = 0;
int qVecRefAInd = 0;
int qVecRefBInd = 0;

double eventPlaneDet;
double eventPlaneRefA;
double eventPlaneRefB;
double eventPlaneDet = 0.;
double eventPlaneRefA = 0.;
double eventPlaneRefB = 0.;

float centrality;
float centrality = 1.;

double angle;
double relPhi;
double relPhiRot;
double relPhiMix;
double angle = -1.;
double relPhi = -1.;
double relPhiRot = -1.;
double relPhiMix = -1.;

// double massPi = o2::constants::physics::MassPionCharged;
double massPtl;
double massPtl = 0.;

int nTotalEvents = 0;

Expand All @@ -231,6 +236,7 @@ struct F0980pbpbanalysis {
PIDRun3 = 0,
PIDRun2 = 1,
PIDTest = 2,
PIDAddITS = 3,
};

enum PtlList {
Expand Down Expand Up @@ -262,19 +268,23 @@ struct F0980pbpbanalysis {
{
if (name.value == "FT0C") {
return 0;
} else if (name.value == "FT0A") {
}
if (name.value == "FT0A") {
return 1;
} else if (name.value == "FT0M") {
}
if (name.value == "FT0M") {
return 2;
} else if (name.value == "FV0A") {
}
if (name.value == "FV0A") {
return 3;
} else if (name.value == "TPCpos") {
}
if (name.value == "TPCpos") {
return 4;
} else if (name.value == "TPCneg") {
}
if (name.value == "TPCneg") {
return 5;
} else {
return 0;
}
return 0;
}

template <typename objType>
Expand Down Expand Up @@ -372,45 +382,45 @@ struct F0980pbpbanalysis {
if (std::abs(collision.posZ()) > EventConfig.cfgEventCutVertex) {
return 0;
}
if (QAConfig.cfgQAEventFlowCut && QA)
if (QAConfig.cfgQAEventFlowCut && QA) {
histos.fill(HIST("EventQA/hnEvents"), 1); // Vertex cut

}
if (!collision.sel8()) {
return 0;
}
if (QAConfig.cfgQAEventFlowCut && QA)
if (QAConfig.cfgQAEventFlowCut && QA) {
histos.fill(HIST("EventQA/hnEvents"), 2); // sel8 cut

}
if (EventConfig.cfgEventGoodZvtxSel && !collision.selection_bit(aod::evsel::kIsGoodZvtxFT0vsPV)) {
return 0;
}
if (QAConfig.cfgQAEventFlowCut && QA)
if (QAConfig.cfgQAEventFlowCut && QA) {
histos.fill(HIST("EventQA/hnEvents"), 3); // Good Zvtx cut

}
if (EventConfig.cfgEventNSamePileupSel && !collision.selection_bit(aod::evsel::kNoSameBunchPileup)) {
return 0;
}
if (QAConfig.cfgQAEventFlowCut && QA)
if (QAConfig.cfgQAEventFlowCut && QA) {
histos.fill(HIST("EventQA/hnEvents"), 4); // Same bunch pileup cut

}
if (EventConfig.cfgEventNCollinTRSel && !collision.selection_bit(o2::aod::evsel::kNoCollInTimeRangeStandard)) {
return 0;
}
if (QAConfig.cfgQAEventFlowCut && QA)
if (QAConfig.cfgQAEventFlowCut && QA) {
histos.fill(HIST("EventQA/hnEvents"), 5); // Collision time range standard cut

}
if (EventConfig.cfgEventQvecSel && (collision.qvecAmp()[detId] < QvecAmpMin || collision.qvecAmp()[refAId] < QvecAmpMin || collision.qvecAmp()[refBId] < QvecAmpMin)) {
return 0;
}
if (QAConfig.cfgQAEventFlowCut && QA)
if (QAConfig.cfgQAEventFlowCut && QA) {
histos.fill(HIST("EventQA/hnEvents"), 6); // Qvector cut

}
if (EventConfig.cfgEventOccupancySel && (collision.trackOccupancyInTimeRange() > EventConfig.cfgEventOccupancyMax || collision.trackOccupancyInTimeRange() < EventConfig.cfgEventOccupancyMin)) {
return 0;
}
if (QAConfig.cfgQAEventFlowCut && QA)
if (QAConfig.cfgQAEventFlowCut && QA) {
histos.fill(HIST("EventQA/hnEvents"), 7); // Occupancy cut

}
if (EventConfig.cfgEventCentMax < centrality) {
return 0;
}
Expand All @@ -423,9 +433,9 @@ struct F0980pbpbanalysis {
return 0;
}
*/
if (QAConfig.cfgQAEventFlowCut && QA)
if (QAConfig.cfgQAEventFlowCut && QA) {
histos.fill(HIST("EventQA/hnEvents"), 8); // Centrality cut

}
if (EventConfig.cfgEventPVSel && std::abs(collision.posZ()) > EventConfig.cfgEventPV) {
return 0;
}
Expand All @@ -440,27 +450,31 @@ struct F0980pbpbanalysis {
template <typename TrackType>
bool trackSelected(const TrackType& track, const bool QA)
{
if (QAConfig.cfgQATrackCut && QA)
if (QAConfig.cfgQATrackCut && QA) {
fillQA(false, track, 3);
if (QAConfig.cfgQATrackFlowCut && QA)
}
if (QAConfig.cfgQATrackFlowCut && QA) {
histos.fill(HIST("TrackQA/hnTracks"), 0); // All passed
//
// Kinematic
}
if (std::abs(track.pt()) < TrackConfig.cfgTrackPtMin) {
return 0;
}
if (std::abs(track.eta()) > TrackConfig.cfgTrackEtaMax) {
return 0;
}
if (QAConfig.cfgQATrackFlowCut && QA)
if (QAConfig.cfgQATrackFlowCut && QA) {
histos.fill(HIST("TrackQA/hnTracks"), 1); // Kinematic
// Primary Vertex(PV) Contributing to the PV fit
}
if (TrackConfig.cfgTrackIsPVContributor && !track.isPVContributor()) {
return 0;
}
if (QAConfig.cfgQATrackFlowCut && QA)
if (QAConfig.cfgQATrackFlowCut && QA) {
histos.fill(HIST("TrackQA/hnTracks"), 2); // PV Contributor
// Global Track without DCA
}
if (TrackConfig.cfgTrackIsGlobalWoDCATrack && !track.isGlobalTrackWoDCA()) {
return 0;
}
Expand All @@ -476,9 +490,10 @@ struct F0980pbpbanalysis {
if (TrackConfig.cfgTrackITSChi2 > 0 && track.itsChi2NCl() > TrackConfig.cfgTrackITSChi2) {
return 0;
}
if (QAConfig.cfgQATrackFlowCut && QA)
if (QAConfig.cfgQATrackFlowCut && QA) {
histos.fill(HIST("TrackQA/hnTracks"), 4); // GlobalWoDCATrack
// DCA cuts
}
if (TrackConfig.cfgTrackDCArDepPTSel) {
if (std::abs(track.dcaXY()) > (TrackConfig.cfgTrackDCArDepPTP0 + (TrackConfig.cfgTrackDCArDepPTExp / track.pt()))) {
return 0;
Expand Down Expand Up @@ -571,6 +586,16 @@ struct F0980pbpbanalysis {
return 0;
}
}
} else if (cfgListPID == PIDList::PIDAddITS) {
if (!track.hasTOF()) {
return 0;
}
if ((getTpcNSigma(track) * getTpcNSigma(track) + getTofNSigma(track) * getTofNSigma(track)) > (PIDConfig.cfgPIDMaxTiednSigmaPion * PIDConfig.cfgPIDMaxTiednSigmaPion)) {
return 0;
}
if (!PIDConfig.cfgPIDITSFlag || std::abs(itsResponse.nSigmaITS<o2::track::PID::Pion>(track)) > PIDConfig.cfgPIDMaxITSnSigmaPion) {
return 0;
}
}
if (QAConfig.cfgQATrackFlowCut && QA) {
histos.fill(HIST("TrackQA/hnTracks"), 8); // PID
Expand All @@ -582,15 +607,22 @@ struct F0980pbpbanalysis {
template <typename TrackType1, typename TrackType2>
bool pairAngleSelection(const TrackType1& track1, const TrackType2& track2)
{
double pt1, pt2, pz1, pz2, p1, p2, angle;
double pt1 = 0.;
double pt2 = 0.;
double pz1 = 0.;
double pz2 = 0.;
double p1 = 0.;
double p2 = 0.;
double angle12 = 0.;

pt1 = track1.pt();
pt2 = track2.pt();
pz1 = track1.pz();
pz2 = track2.pz();
p1 = track1.p();
p2 = track2.p();
angle = std::acos((pt1 * pt2 + pz1 * pz2) / (p1 * p2));
if (PhiTestConfig.cfgPhiDeepAngleSel && angle < PhiTestConfig.cfgPhiDeepAngle) {
angle12 = std::acos((pt1 * pt2 + pz1 * pz2) / (p1 * p2));
if (PhiTestConfig.cfgPhiDeepAngleSel && angle12 < PhiTestConfig.cfgPhiDeepAngle) {
return 0;
}
return 1;
Expand All @@ -601,19 +633,17 @@ struct F0980pbpbanalysis {
{
if (cfgListPtl == PtlList::PtlPion) {
return track.tpcNSigmaPi();
} else {
return track.tpcNSigmaKa();
}
return track.tpcNSigmaKa();
}

template <typename TrackType>
float getTofNSigma(const TrackType& track)
{
if (cfgListPtl == PtlList::PtlPion) {
return track.tofNSigmaPi();
} else {
return track.tofNSigmaKa();
}
return track.tofNSigmaKa();
}

template <bool IsMC, typename CollisionType, typename TracksType>
Expand All @@ -634,9 +664,9 @@ struct F0980pbpbanalysis {
if (!trackSelected(trk1, true)) {
continue;
}
if (QAConfig.cfgQATrackCut)
if (QAConfig.cfgQATrackCut) {
fillQA(true, trk1, 3);

}
if (!selectionPID(trk1, true)) {
continue;
}
Expand Down Expand Up @@ -721,7 +751,7 @@ struct F0980pbpbanalysis {
if (c1.bcId() == c2.bcId()) {
continue;
}
double eventPlaneDet = std::atan2(c1.qvecIm()[qVecDetInd], c1.qvecRe()[qVecDetInd]) / static_cast<float>(nmode);
eventPlaneDet = std::atan2(c1.qvecIm()[qVecDetInd], c1.qvecRe()[qVecDetInd]) / static_cast<float>(nmode);

for (const auto& trk1 : t1) {
if (!trackSelected(trk1, false)) {
Expand Down
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