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[PWGCF] fixing De mass in computing kstar and adding eta phi histo #11759

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Merged
shouqiye merged 8 commits into from
Jun 25, 2025
Merged

[PWGCF] fixing De mass in computing kstar and adding eta phi histo #11759

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d3f622f
fixing De mass in computing kstar and adding eta phi histo
blacwovie Jun 25, 2025
e4df871
add all kstar QA
blacwovie Jun 25, 2025
037f632
Please consider the following formatting changes
alibuild Jun 25, 2025
0477da3
Merge pull request #16 from alibuild/alibot-cleanup-11759
blacwovie Jun 25, 2025
611a90a
fix O2linter bug in computekstar
blacwovie Jun 25, 2025
99bcc12
Please consider the following formatting changes
alibuild Jun 25, 2025
efbcaff
Merge pull request #18 from alibuild/alibot-cleanup-11759
blacwovie Jun 25, 2025
c7ad288
fix mass number O2linter bug
blacwovie Jun 25, 2025
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108 changes: 61 additions & 47 deletions PWGCF/Femto/TableProducer/PiDeuteronFemto.cxx
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Original file line number Diff line number Diff line change
Expand Up @@ -15,30 +15,9 @@
/// \author CMY
/// \date 2025-04-10

#include <TH1F.h>
#include <TDirectory.h>
#include <THn.h>
#include <TLorentzVector.h>
#include <TMath.h>
#include <TObjArray.h>
#include <TFile.h>
#include <TH2F.h>
#include <TLorentzVector.h>

#include <cmath>
#include <string>
#include <algorithm>
#include <vector>
#include <array>
#include <cstdlib>
#include <iterator> // std::prev

#include "Framework/ASoAHelpers.h"
#include "Framework/runDataProcessing.h"
#include "Framework/AnalysisTask.h"
#include "Framework/AnalysisDataModel.h"
#include "Framework/HistogramRegistry.h"
#include "Framework/StepTHn.h"
#include "PWGCF/Femto/DataModel/PionDeuteronTables.h"
#include "PWGLF/DataModel/EPCalibrationTables.h"
#include "PWGLF/Utils/svPoolCreator.h"

#include "Common/Core/PID/PIDTOF.h"
#include "Common/Core/PID/TPCPIDResponse.h"
Expand All @@ -52,21 +31,40 @@
#include "Common/DataModel/PIDResponseITS.h"
#include "Common/DataModel/TrackSelectionTables.h"
#include "Common/TableProducer/PID/pidTOFBase.h"

#include "EventFiltering/Zorro.h"
#include "EventFiltering/ZorroSummary.h"

#include "CCDB/BasicCCDBManager.h"
#include "DetectorsBase/Propagator.h"
#include "DetectorsBase/GeometryManager.h"
#include "DataFormatsTPC/BetheBlochAleph.h"
#include "DataFormatsParameters/GRPObject.h"
#include "DataFormatsParameters/GRPMagField.h"
#include "DataFormatsParameters/GRPObject.h"
#include "DataFormatsTPC/BetheBlochAleph.h"
#include "DetectorsBase/GeometryManager.h"
#include "DetectorsBase/Propagator.h"
#include "Framework/ASoAHelpers.h"
#include "Framework/AnalysisDataModel.h"
#include "Framework/AnalysisTask.h"
#include "Framework/HistogramRegistry.h"
#include "Framework/StepTHn.h"
#include "Framework/runDataProcessing.h"
#include "ReconstructionDataFormats/Track.h"

#include "PWGLF/DataModel/EPCalibrationTables.h"
#include "PWGCF/Femto/DataModel/PionDeuteronTables.h"
#include "PWGLF/Utils/svPoolCreator.h"
#include "Math/Boost.h"
#include "Math/Vector4D.h"
#include <TDirectory.h>
#include <TFile.h>
#include <TH1F.h>
#include <TH2F.h>
#include <THn.h>
#include <TMath.h>
#include <TObjArray.h>

#include <algorithm>
#include <array>
#include <cmath>
#include <cstdlib>
#include <iterator> // std::prev
#include <string>
#include <vector>

using namespace o2;
using namespace o2::framework;
Expand Down Expand Up @@ -236,6 +234,10 @@
{"hDePitInvMass", "; M(De + p) (GeV/#it{c}^{2})", {HistType::kTH1F, {{300, 3.74f, 4.34f}}}},
{"hDePt", "#it{p}_{T} distribution; #it{p}_{T} (GeV/#it{c})", {HistType::kTH1F, {{240, -6.0f, 6.0f}}}},
{"hPiPt", "Pt distribution; #it{p}_{T} (GeV/#it{c})", {HistType::kTH1F, {{120, -3.0f, 3.0f}}}},
{"hDeEta", "eta distribution; #eta(De)", {HistType::kTH1F, {{200, -1.0f, 1.0f}}}},
{"hPiEta", "eta distribution; #eta(#pi)", {HistType::kTH1F, {{200, -1.0f, 1.0f}}}},
{"hDePhi", "phi distribution; phi(De)", {HistType::kTH1F, {{600, -4.0f, 4.0f}}}},
{"hPiPhi", "phi distribution; phi(#pi)", {HistType::kTH1F, {{600, -4.0f, 4.0f}}}},
{"h2dEdxDecandidates", "dEdx distribution; #it{p} (GeV/#it{c}); dE/dx (a.u.)", {HistType::kTH2F, {{200, -5.0f, 5.0f}, {100, 0.0f, 2000.0f}}}},
{"h2NsigmaDeTPC", "NsigmaDe TPC distribution; #it{p}_{T} (GeV/#it{c}); n#sigma_{TPC}(De)", {HistType::kTH2F, {{20, -5.0f, 5.0f}, {200, -5.0f, 5.0f}}}},
{"h2NsigmaDeTPC_preselection", "NsigmaDe TPC distribution; #it{p}_{T} (GeV/#it{c}); n#sigma_{TPC}(De)", {HistType::kTH2F, {{100, -5.0f, 5.0f}, {400, -10.0f, 10.0f}}}},
Expand All @@ -250,6 +252,7 @@
{"hkStar_LS_A", ";kStar (GeV/c)", {HistType::kTH1F, {{300, 0.0f, 3.0f}}}},
{"hkStar_US_M", ";kStar (GeV/c)", {HistType::kTH1F, {{300, 0.0f, 3.0f}}}},
{"hkStar_US_A", ";kStar (GeV/c)", {HistType::kTH1F, {{300, 0.0f, 3.0f}}}},
{"hkStar_All", ";kStar (GeV/c)", {HistType::kTH1F, {{300, 0.0f, 3.0f}}}},
{"hisBkgEM", "; isBkgEM;", {HistType::kTH1F, {{3, -1, 2}}}}},
OutputObjHandlingPolicy::AnalysisObject,
false,
Expand Down Expand Up @@ -691,6 +694,10 @@
{
mQaRegistry.fill(HIST("hDePt"), piDecand.recoPtDe());
mQaRegistry.fill(HIST("hPiPt"), piDecand.recoPtPi());
mQaRegistry.fill(HIST("hDeEta"), piDecand.recoEtaDe());
mQaRegistry.fill(HIST("hPiEta"), piDecand.recoEtaPi());
mQaRegistry.fill(HIST("hDePhi"), piDecand.recoPhiDe());
mQaRegistry.fill(HIST("hPiPhi"), piDecand.recoPhiPi());
mQaRegistry.fill(HIST("hDePitInvMass"), piDecand.invMass);
mQaRegistry.fill(HIST("hdcaxyDe"), piDecand.dcaxyDe);
mQaRegistry.fill(HIST("hdcazDe"), piDecand.dcazDe);
Expand All @@ -701,10 +708,10 @@

double computePrTPCnsig(double InnerParamTPCHad, double SignalTPCHad)
{
double m_BBparamsProton[6] = {-54.42066571222577, 0.2857381250239097, 1.247140602468868, 0.6297483918147729, 2.985438833884555, 0.09};

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[name/function-variable] 

Use lowerCamelCase for names of functions and variables.

float TPCinnerParam = InnerParamTPCHad;

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float expTPCSignal = o2::tpc::BetheBlochAleph((TPCinnerParam / 0.9382721), m_BBparamsProton[0], m_BBparamsProton[1], m_BBparamsProton[2], m_BBparamsProton[3], m_BBparamsProton[4]);

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[pdg/explicit-mass] 

Avoid hard-coded particle masses. Use o2::constants::physics::Mass... instead.
double resoTPC{expTPCSignal * m_BBparamsProton[5]};
return ((SignalTPCHad - expTPCSignal) / resoTPC);
}
Expand All @@ -715,40 +722,46 @@
const float kp0 = 1.22204e-02;
const float kp1 = 7.48467e-01;

double fSigmaTOFMassHad = (kp0 * TMath::Exp(kp1 * TMath::Abs(ptHad))) * fExpTOFMassHad;

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Replace ROOT entities with equivalents from standard C++ or from O2.
double fNSigmaTOFHad = (MassTOFHad - fExpTOFMassHad) / fSigmaTOFMassHad;
return fNSigmaTOFHad;
}

double computeKstar(const PiDecandidate& piDecand)
{
TLorentzVector he3, hadron;
float massHe3 = 2.80839;
float massHad = 0.1395704;
he3.SetPtEtaPhiM(abs(piDecand.recoPtDe()), piDecand.recoEtaDe(), piDecand.recoPhiDe(), massHe3);
hadron.SetPtEtaPhiM(abs(piDecand.recoPtPi()), piDecand.recoEtaPi(), piDecand.recoPhiPi(), massHad);

TLorentzVector p_total_lab = he3 + hadron;
TVector3 v_cm = p_total_lab.BoostVector();
TLorentzVector p1_cm = he3;
TLorentzVector p2_cm = hadron;
p1_cm.Boost(-v_cm);
p2_cm.Boost(-v_cm);
TLorentzVector p_diff_cm = p1_cm - p2_cm;
double kStar = sqrt(p_diff_cm.X() * p_diff_cm.X() + p_diff_cm.Y() * p_diff_cm.Y() + p_diff_cm.Z() * p_diff_cm.Z());
return kStar / 2.0;
constexpr double massDe = o2::constants::physics::MassDeuteron;
constexpr double massHad = o2::constants::physics::MassPiPlus;

const ROOT::Math::PtEtaPhiMVector De(std::abs(piDecand.recoPtDe()), piDecand.recoEtaDe(), piDecand.recoPhiDe(), massDe);

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const ROOT::Math::PtEtaPhiMVector Had(std::abs(piDecand.recoPtPi()), piDecand.recoEtaPi(), piDecand.recoPhiPi(), massHad);

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const ROOT::Math::PtEtaPhiMVector trackSum = De + Had;

const float beta = trackSum.Beta();
const float betax = beta * std::cos(trackSum.Phi()) * std::sin(trackSum.Theta());
const float betay = beta * std::sin(trackSum.Phi()) * std::sin(trackSum.Theta());
const float betaz = beta * std::cos(trackSum.Theta());

ROOT::Math::PxPyPzMVector DeCMS(De);
ROOT::Math::PxPyPzMVector HadCMS(Had);

const ROOT::Math::Boost boostPRF = ROOT::Math::Boost(-betax, -betay, -betaz);
DeCMS = boostPRF(DeCMS);
HadCMS = boostPRF(HadCMS);

const ROOT::Math::PxPyPzMVector RelKstar = DeCMS - HadCMS;
return 0.5 * RelKstar.P();
}

void fillKstar(const PiDecandidate& piDecand)
{
double PrTPCnsigma = computePrTPCnsig(piDecand.momPiTPC, piDecand.tpcSignalPi);
double PrTOFnsigma = tofNSigmaCalculation(piDecand.massTOFPi, piDecand.recoPtPi());
if (abs(PrTPCnsigma) < settingCutNsigTPCPrMin)

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return;
if (abs(PrTOFnsigma) < settingCutNsigTOFPrMin)

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return;
float DeDCAxyMin = 0.015 + 0.0305 / TMath::Power(piDecand.recoPtDe(), 1.1);

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if (abs(piDecand.dcaxyDe) > DeDCAxyMin || abs(piDecand.dcazDe) > settingCutDeDCAzMin || abs(piDecand.dcaxyPi) > settingCutPiDCAxyMin || abs(piDecand.dcazPi) > settingCutPiDCAzMin)

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return;
if (std::abs(piDecand.recoPtPi()) < settingCutPiptMin || std::abs(piDecand.recoPtPi()) > settingCutPiptMax)
return;
Expand All @@ -771,6 +784,7 @@
mQaRegistry.fill(HIST("hkStar_US_A"), kstar);
}
}
mQaRegistry.fill(HIST("hkStar_All"), kstar);
}

// ==================================================================================================================
Expand Down
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