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VarManager.cxx
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2304 lines (2277 loc) · 106 KB
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// Copyright 2019-2020 CERN and copyright holders of ALICE O2.
// See https://alice-o2.web.cern.ch/copyright for details of the copyright holders.
// All rights not expressly granted are reserved.
//
// This software is distributed under the terms of the GNU General Public
// License v3 (GPL Version 3), copied verbatim in the file "COPYING".
//
// In applying this license CERN does not waive the privileges and immunities
// granted to it by virtue of its status as an Intergovernmental Organization
// or submit itself to any jurisdiction.
#include "PWGDQ/Core/VarManager.h"
#include "Tools/KFparticle/KFUtilities.h"
#include <cmath>
#include <iostream>
#include <map>
#include <vector>
using std::cout;
using std::endl;
using namespace o2::constants::physics;
ClassImp(VarManager);
TString VarManager::fgVariableNames[VarManager::kNVars] = {""};
TString VarManager::fgVariableUnits[VarManager::kNVars] = {""};
std::map<TString, int> VarManager::fgVarNamesMap;
bool VarManager::fgUsedVars[VarManager::kNVars] = {false};
bool VarManager::fgUsedKF = false;
float VarManager::fgMagField = 0.5;
float VarManager::fgzMatching = -77.5;
float VarManager::fgzShiftFwd = 0.0;
float VarManager::fgValues[VarManager::kNVars] = {0.0f};
float VarManager::fgTPCInterSectorBoundary = 1.0; // cm
int VarManager::fgITSROFbias = 0;
int VarManager::fgITSROFlength = 100;
int VarManager::fgITSROFBorderMarginLow = 0;
int VarManager::fgITSROFBorderMarginHigh = 0;
uint64_t VarManager::fgSOR = 0;
uint64_t VarManager::fgEOR = 0;
ROOT::Math::PxPyPzEVector VarManager::fgBeamA(0, 0, 6799.99, 6800); // GeV, beam from A-side 4-momentum vector
ROOT::Math::PxPyPzEVector VarManager::fgBeamC(0, 0, -6799.99, 6800); // GeV, beam from C-side 4-momentum vector
o2::vertexing::DCAFitterN<2> VarManager::fgFitterTwoProngBarrel;
o2::vertexing::DCAFitterN<3> VarManager::fgFitterThreeProngBarrel;
o2::vertexing::DCAFitterN<4> VarManager::fgFitterFourProngBarrel;
o2::vertexing::FwdDCAFitterN<2> VarManager::fgFitterTwoProngFwd;
o2::vertexing::FwdDCAFitterN<3> VarManager::fgFitterThreeProngFwd;
o2::globaltracking::MatchGlobalFwd VarManager::mMatching;
std::map<VarManager::CalibObjects, TObject*> VarManager::fgCalibs;
bool VarManager::fgRunTPCPostCalibration[4] = {false, false, false, false};
int VarManager::fgCalibrationType = 0; // 0 - no calibration, 1 - calibration vs (TPCncls,pIN,eta) typically for pp, 2 - calibration vs (eta,nPV,nLong,tLong) typically for PbPb
bool VarManager::fgUseInterpolatedCalibration = true; // use interpolated calibration histograms (default: true)
//__________________________________________________________________
VarManager::VarManager() : TObject()
{
//
// constructor
//
SetDefaultVarNames();
}
//__________________________________________________________________
VarManager::~VarManager() = default;
//__________________________________________________________________
void VarManager::SetVariableDependencies()
{
//
// Set as used variables on which other variables calculation depends
//
if (fgUsedVars[kP]) {
fgUsedVars[kPt] = true;
fgUsedVars[kEta] = true;
}
if (fgUsedVars[kVertexingLxyOverErr]) {
fgUsedVars[kVertexingLxy] = true;
fgUsedVars[kVertexingLxyErr] = true;
}
if (fgUsedVars[kVertexingLzOverErr]) {
fgUsedVars[kVertexingLz] = true;
fgUsedVars[kVertexingLzErr] = true;
}
if (fgUsedVars[kVertexingLxyzOverErr]) {
fgUsedVars[kVertexingLxyz] = true;
fgUsedVars[kVertexingLxyzErr] = true;
}
if (fgUsedVars[kKFTracksDCAxyzMax]) {
fgUsedVars[kKFTrack0DCAxyz] = true;
fgUsedVars[kKFTrack1DCAxyz] = true;
}
if (fgUsedVars[kKFTracksDCAxyMax]) {
fgUsedVars[kKFTrack0DCAxy] = true;
fgUsedVars[kKFTrack1DCAxy] = true;
}
if (fgUsedVars[kTrackIsInsideTPCModule]) {
fgUsedVars[kPhiTPCOuter] = true;
}
}
//__________________________________________________________________
void VarManager::ResetValues(int startValue, int endValue, float* values)
{
//
// reset all variables to an "innocent" value
// NOTE: here we use -9999.0 as a neutral value, but depending on situation, this may not be the case
if (!values) {
values = fgValues;
}
for (Int_t i = startValue; i < endValue; ++i) {
values[i] = -9999.;
}
}
//__________________________________________________________________
void VarManager::SetCollisionSystem(TString system, float energy)
{
//
// Set the collision system and the center of mass energy
//
int NumberOfNucleonsA = 1; // default value for pp collisions
int NumberOfNucleonsC = 1; // default value for pp collisions
int NumberOfProtonsA = 1; // default value for pp collisions
int NumberOfProtonsC = 1; // default value for pp collisions
if (system.EqualTo("PbPb")) {
NumberOfNucleonsA = 208;
NumberOfNucleonsC = 208;
NumberOfProtonsA = 82; // Pb has 82 protons
NumberOfProtonsC = 82; // Pb has 82 protons
} else if (system.EqualTo("pp")) {
NumberOfNucleonsA = 1;
NumberOfNucleonsC = 1;
NumberOfProtonsA = 1; // proton has 1 proton
NumberOfProtonsC = 1; // proton has 1 proton
} else if (system.EqualTo("XeXe")) {
NumberOfNucleonsA = 129;
NumberOfNucleonsC = 129;
NumberOfProtonsA = 54; // Xe has 54 protons
NumberOfProtonsC = 54; // Xe has 54 protons
} else if (system.EqualTo("pPb")) {
NumberOfNucleonsA = 1;
NumberOfNucleonsC = 208;
NumberOfProtonsA = 1; // proton has 1 proton
NumberOfProtonsC = 82; // Pb has 82 protons
} else if (system.EqualTo("Pbp")) {
NumberOfNucleonsA = 208;
NumberOfNucleonsC = 1;
NumberOfProtonsA = 82; // Pb has 82 protons
NumberOfProtonsC = 1; // proton has 1 proton
} else if (system.EqualTo("OO")) {
NumberOfNucleonsA = 16;
NumberOfNucleonsC = 16;
NumberOfProtonsA = 8; // O has 8 protons
NumberOfProtonsC = 8; // O has 8 protons
} else if (system.EqualTo("pO")) {
NumberOfNucleonsA = 1;
NumberOfNucleonsC = 16;
NumberOfProtonsA = 1; // proton has 1 proton
NumberOfProtonsC = 8; // O has 8 protons
} else if (system.EqualTo("NeNe")) {
NumberOfNucleonsA = 20;
NumberOfNucleonsC = 20;
NumberOfProtonsA = 10; // Ne has 5 protons
NumberOfProtonsC = 10; // Ne has 5 protons
}
// TO Do: add more systems
// set the beam 4-momentum vectors
float beamAEnergy = energy / 2.0 * sqrt(NumberOfProtonsA * NumberOfProtonsC / NumberOfProtonsC / NumberOfProtonsA); // GeV
float beamCEnergy = energy / 2.0 * sqrt(NumberOfProtonsC * NumberOfProtonsA / NumberOfProtonsA / NumberOfProtonsC); // GeV
float beamAMomentum = std::sqrt(beamAEnergy * beamAEnergy - NumberOfNucleonsA * NumberOfNucleonsA * MassProton * MassProton);
float beamCMomentum = std::sqrt(beamCEnergy * beamCEnergy - NumberOfNucleonsC * NumberOfNucleonsC * MassProton * MassProton);
fgBeamA.SetPxPyPzE(0, 0, beamAMomentum, beamAEnergy);
fgBeamC.SetPxPyPzE(0, 0, -beamCMomentum, beamCEnergy);
}
//__________________________________________________________________
void VarManager::SetCollisionSystem(o2::parameters::GRPLHCIFData* grplhcif)
{
//
// Set the collision system and the center of mass energy from the GRP information
double beamAEnergy = grplhcif->getBeamEnergyPerNucleonInGeV(o2::constants::lhc::BeamDirection::BeamA);
double beamCEnergy = grplhcif->getBeamEnergyPerNucleonInGeV(o2::constants::lhc::BeamDirection::BeamC);
double beamANucleons = grplhcif->getBeamA(o2::constants::lhc::BeamDirection::BeamA);
double beamCNucleons = grplhcif->getBeamA(o2::constants::lhc::BeamDirection::BeamC);
double beamAMomentum = std::sqrt(beamAEnergy * beamAEnergy - beamANucleons * beamANucleons * MassProton * MassProton);
double beamCMomentum = std::sqrt(beamCEnergy * beamCEnergy - beamCNucleons * beamCNucleons * MassProton * MassProton);
fgBeamA.SetPxPyPzE(0, 0, beamAMomentum, beamAEnergy);
fgBeamC.SetPxPyPzE(0, 0, -beamCMomentum, beamCEnergy);
}
//__________________________________________________________________
// void VarManager::FillEventDerived(float* values)
// {
// //
// // Fill event-wise derived quantities (these are all quantities which can be computed just based on the values already filled in the FillEvent() function)
// //
// }
//__________________________________________________________________
void VarManager::FillTrackDerived(float* values)
{
//
// Fill track-wise derived quantities (these are all quantities which can be computed just based on the values already filled in the FillTrack() function)
//
if (fgUsedVars[kP]) {
values[kP] = values[kPt] * std::cosh(values[kEta]);
}
}
//__________________________________________________________________
float VarManager::calculateCosPA(KFParticle kfp, KFParticle PV)
{
return cpaFromKF(kfp, PV);
}
//__________________________________________________________________
double VarManager::ComputePIDcalibration(int species, double nSigmaValue)
{
// species: 0 - electron, 1 - pion, 2 - kaon, 3 - proton
// Depending on the PID calibration type, we use different types of calibration histograms
if (fgCalibrationType == 1) {
// get the calibration histograms
CalibObjects calibMean, calibSigma;
switch (species) {
case 0:
calibMean = kTPCElectronMean;
calibSigma = kTPCElectronSigma;
break;
case 1:
calibMean = kTPCPionMean;
calibSigma = kTPCPionSigma;
break;
case 2:
calibMean = kTPCKaonMean;
calibSigma = kTPCKaonSigma;
break;
case 3:
calibMean = kTPCProtonMean;
calibSigma = kTPCProtonSigma;
break;
default:
LOG(fatal) << "Invalid species for PID calibration: " << species;
return -999.0; // Return zero if species is invalid
}
TH3F* calibMeanHist = reinterpret_cast<TH3F*>(fgCalibs[calibMean]);
TH3F* calibSigmaHist = reinterpret_cast<TH3F*>(fgCalibs[calibSigma]);
if (!calibMeanHist || !calibSigmaHist) {
LOG(fatal) << "Calibration histograms not found for species: " << species;
return -999.0; // Return zero if histograms are not found
}
// Get the bin indices for the calibration histograms
int binTPCncls = calibMeanHist->GetXaxis()->FindBin(fgValues[kTPCncls]);
binTPCncls = (binTPCncls == 0 ? 1 : binTPCncls);
binTPCncls = (binTPCncls > calibMeanHist->GetXaxis()->GetNbins() ? calibMeanHist->GetXaxis()->GetNbins() : binTPCncls);
int binPin = calibMeanHist->GetYaxis()->FindBin(fgValues[kPin]);
binPin = (binPin == 0 ? 1 : binPin);
binPin = (binPin > calibMeanHist->GetYaxis()->GetNbins() ? calibMeanHist->GetYaxis()->GetNbins() : binPin);
int binEta = calibMeanHist->GetZaxis()->FindBin(fgValues[kEta]);
binEta = (binEta == 0 ? 1 : binEta);
binEta = (binEta > calibMeanHist->GetZaxis()->GetNbins() ? calibMeanHist->GetZaxis()->GetNbins() : binEta);
double mean = calibMeanHist->GetBinContent(binTPCncls, binPin, binEta);
double sigma = calibSigmaHist->GetBinContent(binTPCncls, binPin, binEta);
return (nSigmaValue - mean) / sigma; // Return the calibrated nSigma value
} else if (fgCalibrationType == 2) {
// get the calibration histograms
CalibObjects calibMean, calibSigma, calibStatus;
switch (species) {
case 0:
calibMean = kTPCElectronMean;
calibSigma = kTPCElectronSigma;
calibStatus = kTPCElectronStatus;
break;
case 1:
calibMean = kTPCPionMean;
calibSigma = kTPCPionSigma;
calibStatus = kTPCPionStatus;
break;
case 2:
calibMean = kTPCKaonMean;
calibSigma = kTPCKaonSigma;
calibStatus = kTPCKaonStatus;
break;
case 3:
calibMean = kTPCProtonMean;
calibSigma = kTPCProtonSigma;
calibStatus = kTPCProtonStatus;
break;
default:
LOG(fatal) << "Invalid species for PID calibration: " << species;
return -999.0; // Return zero if species is invalid
}
THnF* calibMeanHist = reinterpret_cast<THnF*>(fgCalibs[calibMean]);
THnF* calibSigmaHist = reinterpret_cast<THnF*>(fgCalibs[calibSigma]);
THnF* calibStatusHist = reinterpret_cast<THnF*>(fgCalibs[calibStatus]);
if (!calibMeanHist || !calibSigmaHist || !calibStatusHist) {
LOG(fatal) << "Calibration histograms not found for species: " << species;
return -999.0; // Return zero if histograms are not found
}
// Get the bin indices for the calibration histograms
int binEta = calibMeanHist->GetAxis(0)->FindBin(fgValues[kEta]);
binEta = (binEta == 0 ? 1 : binEta);
binEta = (binEta > calibMeanHist->GetAxis(0)->GetNbins() ? calibMeanHist->GetAxis(0)->GetNbins() : binEta);
int binNpv = calibMeanHist->GetAxis(1)->FindBin(fgValues[kVtxNcontribReal]);
binNpv = (binNpv == 0 ? 1 : binNpv);
binNpv = (binNpv > calibMeanHist->GetAxis(1)->GetNbins() ? calibMeanHist->GetAxis(1)->GetNbins() : binNpv);
int binNlong = calibMeanHist->GetAxis(2)->FindBin(fgValues[kNTPCcontribLongA]);
binNlong = (binNlong == 0 ? 1 : binNlong);
binNlong = (binNlong > calibMeanHist->GetAxis(2)->GetNbins() ? calibMeanHist->GetAxis(2)->GetNbins() : binNlong);
int binTlong = calibMeanHist->GetAxis(3)->FindBin(fgValues[kNTPCmedianTimeLongA]);
binTlong = (binTlong == 0 ? 1 : binTlong);
binTlong = (binTlong > calibMeanHist->GetAxis(3)->GetNbins() ? calibMeanHist->GetAxis(3)->GetNbins() : binTlong);
int bin[4] = {binEta, binNpv, binNlong, binTlong};
int status = static_cast<int>(calibStatusHist->GetBinContent(bin));
double mean = calibMeanHist->GetBinContent(bin);
double sigma = calibSigmaHist->GetBinContent(bin);
switch (status) {
case 0:
// good calibration, return the calibrated nSigma value
return (nSigmaValue - mean) / sigma;
break;
case 1:
// calibration not valid, return the original nSigma value
return nSigmaValue;
break;
case 2: // calibration constant has poor stat uncertainty, consider the user option for what to do
case 3:
// calibration constants have been interpolated
if (fgUseInterpolatedCalibration) {
return (nSigmaValue - mean) / sigma;
} else {
// return the original nSigma value
return nSigmaValue;
}
break;
case 4:
// calibration constants interpolation failed, return the original nSigma value
return nSigmaValue;
break;
default:
return nSigmaValue; // unknown status, return the original nSigma value
break;
}
} else {
// unknown calibration type, return the original nSigma value
LOG(fatal) << "Unknown calibration type: " << fgCalibrationType;
return nSigmaValue; // Return the original nSigma value
}
}
//__________________________________________________________________
void VarManager::SetDefaultVarNames()
{
//
// Set default variable names
//
for (Int_t ivar = 0; ivar < kNVars; ++ivar) {
fgVariableNames[ivar] = "DEFAULT NOT DEFINED";
fgVariableUnits[ivar] = "n/a";
}
fgVariableNames[kRunNo] = "Run number";
fgVariableUnits[kRunNo] = "";
fgVariableNames[kTFNBCs] = "Number of bunch crossings per TF";
fgVariableUnits[kTFNBCs] = "";
fgVariableNames[kTFNCollisions] = "Number of collisions per TF";
fgVariableUnits[kTFNCollisions] = "";
fgVariableNames[kTFNMCCollisions] = "Number of MC collisions per TF";
fgVariableUnits[kTFNMCCollisions] = "";
fgVariableNames[kTFNTracks] = "Number of tracks per TF";
fgVariableUnits[kTFNTracks] = "";
fgVariableNames[kTFNMuons] = "Number of muons per TF";
fgVariableUnits[kTFNMuons] = "";
fgVariableNames[kTFNMFTs] = "Number of MFT tracks per TF";
fgVariableUnits[kTFNMFTs] = "";
fgVariableNames[kBC] = "Bunch crossing";
fgVariableUnits[kBC] = "";
fgVariableNames[kTimeFromSOR] = "time since SOR";
fgVariableUnits[kTimeFromSOR] = "min.";
fgVariableNames[kBCOrbit] = "Bunch crossing";
fgVariableUnits[kBCOrbit] = "";
fgVariableNames[kIsPhysicsSelection] = "Physics selection";
fgVariableUnits[kIsPhysicsSelection] = "";
fgVariableNames[kVtxX] = "Vtx X ";
fgVariableUnits[kVtxX] = "cm";
fgVariableNames[kVtxY] = "Vtx Y ";
fgVariableUnits[kVtxY] = "cm";
fgVariableNames[kVtxZ] = "Vtx Z ";
fgVariableUnits[kVtxZ] = "cm";
fgVariableNames[kCollisionTime] = "collision time wrt BC";
fgVariableUnits[kCollisionTime] = "ns";
fgVariableNames[kCollisionTimeRes] = "collision time resolution";
fgVariableUnits[kCollisionTimeRes] = "ns";
fgVariableNames[kVtxNcontrib] = "Vtx contrib.";
fgVariableUnits[kVtxNcontrib] = "";
fgVariableNames[kVtxNcontribReal] = "Real Vtx contrib.";
fgVariableUnits[kVtxNcontribReal] = "";
fgVariableNames[kVtxCovXX] = "Vtx covXX";
fgVariableUnits[kVtxCovXX] = "cm";
fgVariableNames[kVtxCovXY] = "Vtx covXY";
fgVariableUnits[kVtxCovXY] = "cm";
fgVariableNames[kVtxCovXZ] = "Vtx covXZ";
fgVariableUnits[kVtxCovXZ] = "cm";
fgVariableNames[kVtxCovYY] = "Vtx covYY";
fgVariableUnits[kVtxCovYY] = "cm";
fgVariableNames[kVtxCovYZ] = "Vtx covYZ";
fgVariableUnits[kVtxCovYZ] = "cm";
fgVariableNames[kVtxCovZZ] = "Vtx covZZ";
fgVariableUnits[kVtxCovZZ] = "cm";
fgVariableNames[kVtxChi2] = "Vtx chi2";
fgVariableUnits[kVtxChi2] = "";
fgVariableNames[kCentVZERO] = "Centrality VZERO";
fgVariableUnits[kCentVZERO] = "%";
fgVariableNames[kCentFT0C] = "Centrality FT0C";
fgVariableUnits[kCentFT0C] = "%";
fgVariableNames[kCentFT0A] = "Centrality FT0A";
fgVariableUnits[kCentFT0A] = "%";
fgVariableNames[kCentFT0M] = "Centrality FT0M";
fgVariableUnits[kCentFT0M] = "%";
fgVariableNames[kMultTPC] = "Multiplicity TPC";
fgVariableUnits[kMultTPC] = "";
fgVariableNames[kMultFV0A] = "Multiplicity FV0A";
fgVariableUnits[kMultFV0A] = "";
fgVariableNames[kMultFV0C] = "Multiplicity FV0C";
fgVariableUnits[kMultFV0C] = "";
fgVariableNames[kMultFT0A] = "Multiplicity FT0A";
fgVariableUnits[kMultFT0A] = "";
fgVariableNames[kMultFT0C] = "Multiplicity FT0C";
fgVariableUnits[kMultFT0C] = "";
fgVariableNames[kMultFDDA] = "Multiplicity FDDA";
fgVariableUnits[kMultFDDA] = "";
fgVariableNames[kMultFDDC] = "Multiplicity FDDC";
fgVariableUnits[kMultFDDC] = "";
fgVariableNames[kMultZNA] = "Multiplicity ZNA";
fgVariableUnits[kMultZNA] = "";
fgVariableNames[kMultZNC] = "Multiplicity ZNC";
fgVariableUnits[kMultZNC] = "";
fgVariableNames[kMultTracklets] = "Multiplicity Tracklets";
fgVariableUnits[kMultTracklets] = "";
fgVariableNames[kMultDimuons] = "Multiplicity Dimuons Unlike Sign";
fgVariableUnits[kMultDimuons] = "";
fgVariableNames[kMultDimuonsME] = "Multiplicity Dimuons Unlike Sign Mixed Events";
fgVariableUnits[kMultDimuonsME] = "";
fgVariableNames[kCentFT0C] = "Centrality FT0C";
fgVariableUnits[kCentFT0C] = "%";
fgVariableNames[kMCEventGeneratorId] = "MC Generator ID";
fgVariableNames[kMCEventSubGeneratorId] = "MC SubGenerator ID";
fgVariableNames[kMCVtxX] = "MC Vtx X";
fgVariableNames[kMCVtxY] = "MC Vtx Y";
fgVariableNames[kMCVtxZ] = "MC Vtx Z";
fgVariableNames[kMCEventTime] = "MC event time";
fgVariableNames[kMCEventWeight] = "MC event weight";
fgVariableNames[kMCEventImpParam] = "MC impact parameter";
fgVariableNames[kMCEventCentrFT0C] = "MC Centrality FT0C";
fgVariableNames[kMultMCNParticlesEta05] = "MC Multiplicity Central Barrel for |eta| < 0.5";
fgVariableNames[kMultMCNParticlesEta08] = "MC Multiplicity Central Barrel for |eta| < 0.8";
fgVariableNames[kMultMCNParticlesEta10] = "MC Multiplicity Central Barrel for |eta| < 1.0";
fgVariableUnits[kMCEventGeneratorId] = "";
fgVariableUnits[kMCEventSubGeneratorId] = "";
fgVariableUnits[kMCVtxX] = "cm";
fgVariableUnits[kMCVtxY] = "cm";
fgVariableUnits[kMCVtxZ] = "cm";
fgVariableUnits[kMCEventTime] = ""; // TODO: add proper unit
fgVariableUnits[kMCEventWeight] = "";
fgVariableUnits[kMCEventImpParam] = "b";
fgVariableUnits[kMCEventCentrFT0C] = "%";
fgVariableUnits[kMultMCNParticlesEta05] = "Multiplicity_eta05";
fgVariableUnits[kMultMCNParticlesEta08] = "Multiplicity_eta08";
fgVariableUnits[kMultMCNParticlesEta10] = "Multiplicity_eta10";
fgVariableNames[kTwoEvPosZ1] = "vtx-z_{1}";
fgVariableUnits[kTwoEvPosZ1] = "cm";
fgVariableNames[kTwoEvPosZ2] = "vtx-z_{2}";
fgVariableUnits[kTwoEvPosZ2] = "cm";
fgVariableNames[kTwoEvPosR1] = "vtx-R_{1}";
fgVariableUnits[kTwoEvPosR1] = "cm";
fgVariableNames[kTwoEvPosR2] = "vtx-R_{2}";
fgVariableUnits[kTwoEvPosR2] = "cm";
fgVariableNames[kTwoEvDeltaZ] = "#Delta_{z}";
fgVariableUnits[kTwoEvDeltaZ] = "cm";
fgVariableNames[kTwoEvDeltaR] = "#Delta_{R}";
fgVariableUnits[kTwoEvDeltaR] = "cm";
fgVariableNames[kTwoEvDeltaX] = "#Delta_{x}";
fgVariableUnits[kTwoEvDeltaX] = "cm";
fgVariableNames[kTwoEvDeltaY] = "#Delta_{y}";
fgVariableUnits[kTwoEvDeltaY] = "cm";
fgVariableNames[kTwoEvPVcontrib1] = "n.contrib 1";
fgVariableUnits[kTwoEvPVcontrib1] = "";
fgVariableNames[kTwoEvPVcontrib2] = "n.contrib 2";
fgVariableUnits[kTwoEvPVcontrib2] = "";
fgVariableNames[kEnergyCommonZNA] = "ZNA common energy";
fgVariableUnits[kEnergyCommonZNA] = "";
fgVariableNames[kEnergyCommonZNC] = "ZNC common energy";
fgVariableUnits[kEnergyCommonZNC] = "";
fgVariableNames[kEnergyCommonZPA] = "ZPA common energy";
fgVariableUnits[kEnergyCommonZPA] = "";
fgVariableNames[kEnergyCommonZPC] = "ZPC common energy";
fgVariableUnits[kEnergyCommonZPC] = "";
fgVariableNames[kTimeZNA] = "ZNA time";
fgVariableUnits[kTimeZNA] = "";
fgVariableNames[kTimeZNC] = "ZNC time";
fgVariableUnits[kTimeZNC] = "";
fgVariableNames[kTimeZPA] = "ZPA time";
fgVariableUnits[kTimeZPA] = "";
fgVariableNames[kTimeZPC] = "ZPC time";
fgVariableUnits[kTimeZPC] = "";
fgVariableNames[kMultNTracksHasITS] = "#tracks in PV with ITS";
fgVariableUnits[kMultNTracksHasITS] = "";
fgVariableNames[kMultNTracksHasTPC] = "#tracks in PV with TPC";
fgVariableUnits[kMultNTracksHasTPC] = "";
fgVariableNames[kMultNTracksHasTOF] = "#tracks in PV with TOF";
fgVariableUnits[kMultNTracksHasTOF] = "";
fgVariableNames[kMultNTracksHasTRD] = "#tracks in PV with TRD";
fgVariableUnits[kMultNTracksHasTRD] = "";
fgVariableNames[kMultNTracksITSOnly] = "# ITS only tracks in PV";
fgVariableUnits[kMultNTracksITSOnly] = "";
fgVariableNames[kMultNTracksTPCOnly] = "# TPC only tracks in PV";
fgVariableUnits[kMultNTracksTPCOnly] = "";
fgVariableNames[kMultNTracksITSTPC] = "# ITS-TPC tracks in PV";
fgVariableUnits[kMultNTracksITSTPC] = "";
fgVariableNames[kMultNTracksPVeta1] = "# Mult Tracks PV |#eta| < 1";
fgVariableUnits[kMultNTracksPVeta1] = "";
fgVariableNames[kMultNTracksPVetaHalf] = "# Mult Tracks PV |#eta| < 0.5";
fgVariableUnits[kMultNTracksPVetaHalf] = "";
fgVariableNames[kTrackOccupancyInTimeRange] = "track occupancy in TPC drift time (PV tracks)";
fgVariableUnits[kTrackOccupancyInTimeRange] = "";
fgVariableNames[kFT0COccupancyInTimeRange] = "FT0C occupancy";
fgVariableUnits[kFT0COccupancyInTimeRange] = "";
fgVariableNames[kNoCollInTimeRangeStandard] = "track occupancy in TPC drift standart time";
fgVariableUnits[kNoCollInTimeRangeStandard] = "";
fgVariableNames[kMultAllTracksITSTPC] = "# ITS-TPC tracks";
fgVariableUnits[kMultAllTracksITSTPC] = "";
fgVariableNames[kMultAllTracksTPCOnly] = "# TPC only tracks";
fgVariableUnits[kMultAllTracksTPCOnly] = "";
fgVariableNames[kNTPCpileupContribA] = "# TPC pileup contributors on A side";
fgVariableUnits[kNTPCpileupContribA] = "";
fgVariableNames[kNTPCpileupContribC] = "# TPC pileup contributors on C side";
fgVariableUnits[kNTPCpileupContribC] = "";
fgVariableNames[kNTPCpileupZA] = "# TPC pileup mean-Z on A side";
fgVariableUnits[kNTPCpileupZA] = "";
fgVariableNames[kNTPCpileupZC] = "# TPC pileup mean-Z on C side";
fgVariableUnits[kNTPCpileupZC] = "";
fgVariableNames[kNTPCtracksInPast] = "# TPC tracks in past";
fgVariableUnits[kNTPCtracksInPast] = "";
fgVariableNames[kNTPCtracksInFuture] = "# TPC tracks in future";
fgVariableUnits[kNTPCtracksInFuture] = "";
fgVariableNames[kNTPCcontribLongA] = "# TPC-A pileup, long time range";
fgVariableUnits[kNTPCcontribLongA] = "";
fgVariableNames[kNTPCcontribLongC] = "# TPC-C pileup, long time range";
fgVariableUnits[kNTPCcontribLongC] = "";
fgVariableNames[kNTPCmeanTimeLongA] = "# TPC-A pileup mean time, long time range";
fgVariableUnits[kNTPCmeanTimeLongA] = "#mu s";
fgVariableNames[kNTPCmeanTimeLongC] = "# TPC-C pileup mean time, long time range";
fgVariableUnits[kNTPCmeanTimeLongC] = "#mu s";
fgVariableNames[kNTPCmedianTimeLongA] = "# TPC-A pileup median time, long time range";
fgVariableUnits[kNTPCmedianTimeLongA] = "#mu s";
fgVariableNames[kNTPCmedianTimeLongC] = "# TPC-C pileup median time, long time range";
fgVariableUnits[kNTPCmedianTimeLongC] = "#mu s";
fgVariableNames[kNTPCcontribShortA] = "# TPC-A pileup, short time range";
fgVariableUnits[kNTPCcontribShortA] = "";
fgVariableNames[kNTPCcontribShortC] = "# TPC-C pileup, short time range";
fgVariableUnits[kNTPCcontribShortC] = "";
fgVariableNames[kNTPCmeanTimeShortA] = "# TPC-A pileup mean time, short time range";
fgVariableUnits[kNTPCmeanTimeShortA] = "#mu s";
fgVariableNames[kNTPCmeanTimeShortC] = "# TPC-C pileup mean time, short time range";
fgVariableUnits[kNTPCmeanTimeShortC] = "#mu s";
fgVariableNames[kNTPCmedianTimeShortA] = "# TPC-A pileup median time, short time range";
fgVariableUnits[kNTPCmedianTimeShortA] = "#mu s";
fgVariableNames[kNTPCmedianTimeShortC] = "# TPC-C pileup median time, short time range";
fgVariableUnits[kNTPCmedianTimeShortC] = "#mu s";
fgVariableNames[kPt] = "p_{T}";
fgVariableUnits[kPt] = "GeV/c";
fgVariableNames[kPt1] = "p_{T1}";
fgVariableUnits[kPt1] = "GeV/c";
fgVariableNames[kPt2] = "p_{T2}";
fgVariableUnits[kPt2] = "GeV/c";
fgVariableNames[kInvPt] = "1/p_{T}";
fgVariableUnits[kInvPt] = "1/(GeV/c)";
fgVariableNames[kP] = "p";
fgVariableUnits[kP] = "GeV/c";
fgVariableNames[kPx] = "p_{x}";
fgVariableUnits[kPy] = "GeV/c";
fgVariableNames[kPy] = "p_{y}";
fgVariableUnits[kPz] = "GeV/c";
fgVariableNames[kPz] = "p_{z}";
fgVariableUnits[kPx] = "GeV/c";
fgVariableNames[kEta] = "#eta";
fgVariableUnits[kEta] = "";
fgVariableNames[kPhi] = "#varphi";
fgVariableUnits[kPhi] = "rad.";
fgVariableNames[kRap] = "y";
fgVariableUnits[kRap] = "";
fgVariableNames[kMass] = "mass";
fgVariableUnits[kMass] = "GeV/c2";
fgVariableNames[kDeltaPtotTracks] = "#it{p}_{Tot}^{#mu+} - #it{p}_{Tot}^{#mu-}";
fgVariableUnits[kDeltaPtotTracks] = "GeV/c";
fgVariableNames[kCharge] = "charge";
fgVariableUnits[kCharge] = "";
fgVariableNames[kCharge1] = "charge track 1";
fgVariableUnits[kCharge1] = "";
fgVariableNames[kCharge2] = "charge track 2";
fgVariableUnits[kCharge2] = "";
fgVariableNames[kPin] = "p_{IN}";
fgVariableUnits[kPin] = "GeV/c";
fgVariableNames[kPin_leg1] = "p_{IN}";
fgVariableUnits[kPin_leg1] = "GeV/c";
fgVariableNames[kSignedPin] = "p_{IN} x charge";
fgVariableUnits[kSignedPin] = "GeV/c";
fgVariableNames[kTOFExpMom] = "TOF expected momentum";
fgVariableUnits[kTOFExpMom] = "GeV/c";
fgVariableNames[kTrackTime] = "Track time wrt collision().bc()";
fgVariableUnits[kTrackTime] = "ns";
fgVariableNames[kTrackTimeRes] = "Resolution of the track time";
fgVariableUnits[kTrackTimeRes] = "ns";
fgVariableNames[kTrackTimeResRelative] = "Relative resolution of the track time";
fgVariableUnits[kTrackTimeResRelative] = "";
fgVariableNames[kDetectorMap] = "DetectorMap";
fgVariableUnits[kDetectorMap] = "";
fgVariableNames[kHasITS] = "HasITS";
fgVariableUnits[kHasITS] = "";
fgVariableNames[kHasTRD] = "HasTRD";
fgVariableUnits[kHasTRD] = "";
fgVariableNames[kHasTOF] = "HasTOF";
fgVariableUnits[kHasTOF] = "";
fgVariableNames[kHasTPC] = "HasTPC";
fgVariableUnits[kHasTPC] = "";
fgVariableNames[kITSncls] = "ITS #cls";
fgVariableUnits[kITSncls] = "";
fgVariableUnits[kITSClusterMap] = "ITSClusterMap";
fgVariableNames[kITSchi2] = "ITS chi2";
fgVariableUnits[kITSchi2] = "";
fgVariableNames[kITSlayerHit] = "ITS layer";
fgVariableUnits[kITSlayerHit] = "";
fgVariableNames[kITSmeanClsSize] = "ITS mean Cls Size";
fgVariableUnits[kITSmeanClsSize] = "";
fgVariableNames[kTPCncls] = "TPC #cls";
fgVariableUnits[kTPCncls] = "";
fgVariableNames[kTPCnclsCR] = "TPC #cls crossed rows";
fgVariableUnits[kTPCnclsCR] = "";
fgVariableNames[kTPCnCRoverFindCls] = "TPC crossed rows over findable cls";
fgVariableUnits[kTPCnCRoverFindCls] = "";
fgVariableNames[kTPCchi2] = "TPC chi2";
fgVariableUnits[kTPCchi2] = "";
fgVariableNames[kTPCsignal] = "TPC dE/dx";
fgVariableUnits[kTPCsignal] = "";
fgVariableNames[kPhiTPCOuter] = "#varphi_{TPCout}";
fgVariableUnits[kPhiTPCOuter] = "rad.";
fgVariableNames[kTrackIsInsideTPCModule] = "Track is in TPC module";
fgVariableUnits[kTrackIsInsideTPCModule] = "";
fgVariableNames[kTRDsignal] = "TRD dE/dx";
fgVariableUnits[kTRDsignal] = "";
fgVariableNames[kTOFbeta] = "TOF #beta";
fgVariableUnits[kTOFbeta] = "";
fgVariableNames[kTrackLength] = "track length";
fgVariableUnits[kTrackLength] = "cm";
fgVariableNames[kTrackDCAxy] = "DCA_{xy}";
fgVariableUnits[kTrackDCAxy] = "cm";
fgVariableNames[kTrackDCAz] = "DCA_{z}";
fgVariableUnits[kTrackDCAz] = "cm";
fgVariableNames[kTPCnSigmaEl] = "n #sigma_{e}^{TPC}";
fgVariableUnits[kTPCnSigmaEl] = "";
fgVariableNames[kTPCnSigmaEl_Corr] = "n #sigma_{e}^{TPC} Corr.";
fgVariableUnits[kTPCnSigmaEl_Corr] = "";
fgVariableNames[kTPCnSigmaMu] = "n #sigma_{#mu}^{TPC}";
fgVariableUnits[kTPCnSigmaMu] = "";
fgVariableNames[kTPCnSigmaPi] = "n #sigma_{#pi}^{TPC}";
fgVariableUnits[kTPCnSigmaPi] = "";
fgVariableNames[kTPCnSigmaPi_Corr] = "n #sigma_{#pi}^{TPC} Corr.";
fgVariableUnits[kTPCnSigmaPi_Corr] = "";
fgVariableNames[kTPCnSigmaKa] = "n #sigma_{K}^{TPC}";
fgVariableUnits[kTPCnSigmaKa] = "";
fgVariableNames[kTPCnSigmaKa_leg1] = "n #sigma_{K}^{TPC}";
fgVariableUnits[kTPCnSigmaKa_leg1] = "";
fgVariableNames[kTPCnSigmaKa_Corr] = "n #sigma_{K}^{TPC} Corr.";
fgVariableUnits[kTPCnSigmaKa_Corr] = "";
fgVariableNames[kTPCnSigmaPr] = "n #sigma_{p}^{TPC}";
fgVariableUnits[kTPCnSigmaPr] = "";
fgVariableNames[kTPCnSigmaPr_Corr] = "n #sigma_{p}^{TPC} Corr.";
fgVariableUnits[kTPCnSigmaPr_Corr] = "";
fgVariableNames[kTOFnSigmaEl] = "n #sigma_{e}^{TOF}";
fgVariableUnits[kTOFnSigmaEl] = "";
fgVariableNames[kTOFnSigmaMu] = "n #sigma_{#mu}^{TOF}";
fgVariableUnits[kTOFnSigmaMu] = "";
fgVariableNames[kTOFnSigmaPi] = "n #sigma_{#pi}^{TOF}";
fgVariableUnits[kTOFnSigmaPi] = "";
fgVariableNames[kTOFnSigmaKa] = "n #sigma_{K}^{TOF}";
fgVariableUnits[kTOFnSigmaKa] = "";
fgVariableNames[kTOFnSigmaPr] = "n #sigma_{p}^{TOF}";
fgVariableUnits[kTOFnSigmaPr] = "";
fgVariableNames[kIsAmbiguous] = "is ambiguous track";
fgVariableUnits[kIsAmbiguous] = "";
fgVariableNames[kIsLegFromGamma] = "is leg from #gamma #rightarror e^{+}e^{-}";
fgVariableUnits[kIsLegFromGamma] = "";
fgVariableNames[kIsLegFromK0S] = "is leg from K_{S}^{0} #rightarror #pi^{+}#pi^{-}";
fgVariableUnits[kIsLegFromK0S] = "";
fgVariableNames[kIsLegFromLambda] = "is leg from #Lambda #rightarror p#pi^{-}";
fgVariableUnits[kIsLegFromLambda] = "";
fgVariableNames[kIsLegFromAntiLambda] = "is leg from #bar{#Lambda} #rightarrow #bar{p}#pi^{+}";
fgVariableUnits[kIsLegFromAntiLambda] = "";
fgVariableNames[kIsLegFromOmega] = "is leg from #Omega^{#mp} #rightarrow #LambdaKi^{#pm}";
fgVariableUnits[kIsLegFromOmega] = "";
fgVariableNames[kMuonNClusters] = "muon n-clusters";
fgVariableUnits[kMuonNClusters] = "";
fgVariableNames[kMftNClusters] = "MFT n-clusters";
fgVariableUnits[kMftNClusters] = "";
fgVariableNames[kMftClusterSize] = "MFT cluster size";
fgVariableUnits[kMftClusterSize] = "";
fgVariableNames[kMftMeanClusterSize] = "<MFT cluster size>";
fgVariableUnits[kMftMeanClusterSize] = "";
fgVariableNames[kMuonRAtAbsorberEnd] = "R at the end of the absorber";
fgVariableUnits[kMuonRAtAbsorberEnd] = "cm";
fgVariableNames[kMuonPDca] = "p x dca";
fgVariableUnits[kMuonPDca] = "cm x GeV/c";
fgVariableNames[kMCHBitMap] = "MCH bitmap";
fgVariableUnits[kMCHBitMap] = "";
fgVariableNames[kMuonChi2] = "#chi^{2}";
fgVariableUnits[kMuonChi2] = "";
fgVariableNames[kMuonChi2MatchMCHMID] = "#chi^{2} MCH-MID";
fgVariableUnits[kMuonChi2MatchMCHMID] = "";
fgVariableNames[kMuonChi2MatchMCHMFT] = "#chi^{2} MCH-MFT";
fgVariableUnits[kMuonChi2MatchMCHMFT] = "";
fgVariableNames[kMuonMatchScoreMCHMFT] = "match score MCH-MFT";
fgVariableUnits[kMuonMatchScoreMCHMFT] = "";
fgVariableNames[kMuonDCAx] = "dca_X";
fgVariableUnits[kMuonDCAx] = "cm";
fgVariableNames[kMuonDCAy] = "dca_Y";
fgVariableUnits[kMuonDCAy] = "cm";
fgVariableNames[kMuonCXX] = "cov XX";
fgVariableUnits[kMuonCXX] = "";
fgVariableNames[kMuonCYY] = "cov YY";
fgVariableUnits[kMuonCYY] = "";
fgVariableNames[kMuonCPhiPhi] = "cov PhiPhi";
fgVariableUnits[kMuonCPhiPhi] = "";
fgVariableNames[kMuonCTglTgl] = "cov TglTgl";
fgVariableUnits[kMuonCTglTgl] = "";
fgVariableNames[kMuonC1Pt21Pt2] = "cov 1Pt1Pt";
fgVariableUnits[kMuonC1Pt21Pt2] = "";
fgVariableNames[kMuonTime] = "Track time wrt collision().bc()";
fgVariableUnits[kMuonTime] = "ns";
fgVariableNames[kMuonTimeRes] = "Resolution of the track time";
fgVariableUnits[kMuonTimeRes] = "ns";
fgVariableNames[kMCPdgCode] = "MC PDG code";
fgVariableUnits[kMCPdgCode] = "";
fgVariableNames[kMCCosTheta] = "Cos#theta";
fgVariableUnits[kMCCosTheta] = "";
fgVariableNames[kMCHadronPdgCode] = "HadronPdgCode";
fgVariableUnits[kMCHadronPdgCode] = "";
fgVariableNames[kMCCosChi] = "Cos#chi";
fgVariableUnits[kMCCosChi] = "";
fgVariableNames[kMCJpsiPt] = "Jpsi p_{T}";
fgVariableUnits[kMCJpsiPt] = "GeV/c";
fgVariableNames[kMCHadronPt] = "Hadron p_{T}";
fgVariableUnits[kMCHadronPt] = "GeV/c";
fgVariableNames[kMCHadronEta] = "Hadron #eta";
fgVariableUnits[kMCHadronEta] = "";
fgVariableNames[kMCdeltaphi] = "#Delta#phi";
fgVariableUnits[kMCdeltaphi] = "";
fgVariableNames[kMCdeltaeta] = "#Delta#eta";
fgVariableUnits[kMCdeltaeta] = "";
fgVariableNames[kMCParticleWeight] = "MC particle weight";
fgVariableUnits[kMCParticleWeight] = "";
fgVariableNames[kMCPx] = "MC px";
fgVariableUnits[kMCPx] = "GeV/c";
fgVariableNames[kMCPy] = "MC py";
fgVariableUnits[kMCPy] = "GeV/c";
fgVariableNames[kMCPz] = "MC pz";
fgVariableUnits[kMCPz] = "GeV/c";
fgVariableNames[kMCPt] = "MC p_{T}";
fgVariableUnits[kMCPt] = "GeV/c";
fgVariableNames[kMCPhi] = "#varphi";
fgVariableUnits[kMCPhi] = "rad";
fgVariableNames[kMCEta] = "MC #eta";
fgVariableUnits[kMCEta] = "";
fgVariableNames[kMCY] = "MC y";
fgVariableUnits[kMCY] = "";
fgVariableNames[kMCE] = "MC Energy";
fgVariableUnits[kMCE] = "GeV";
fgVariableNames[kMCMass] = "MC Mass";
fgVariableUnits[kMCMass] = "GeV/c2";
fgVariableNames[kMCVx] = "MC vx";
fgVariableUnits[kMCVx] = "cm"; // TODO: check the unit
fgVariableNames[kMCVy] = "MC vy";
fgVariableUnits[kMCVy] = "cm"; // TODO: check the unit
fgVariableNames[kMCVz] = "MC vz";
fgVariableUnits[kMCVz] = "cm"; // TODO: check the unit
fgVariableNames[kMCCosThetaHE] = "MC cos(#theta_{HE})";
fgVariableUnits[kMCCosThetaHE] = "";
fgVariableNames[kMCPhiHE] = "MC #varphi_{HE}";
fgVariableUnits[kMCPhiHE] = "rad";
fgVariableNames[kMCPhiTildeHE] = "MC #tilde{#varphi}_{HE}";
fgVariableUnits[kMCPhiTildeHE] = "rad";
fgVariableNames[kMCCosThetaCS] = "MC cos(#theta_{CS})";
fgVariableUnits[kMCCosThetaCS] = "";
fgVariableNames[kMCPhiCS] = "MC #varphi_{CS}";
fgVariableUnits[kMCPhiCS] = "rad";
fgVariableNames[kMCPhiTildeCS] = "MC #tilde{#varphi}_{CS}";
fgVariableUnits[kMCPhiTildeCS] = "rad";
fgVariableNames[kMCCosThetaPP] = "MC cos(#theta_{PP})";
fgVariableUnits[kMCCosThetaPP] = "";
fgVariableNames[kMCPhiPP] = "MC #varphi_{PP}";
fgVariableUnits[kMCPhiPP] = "rad";
fgVariableNames[kMCPhiTildePP] = "MC #tilde{#varphi}_{PP}";
fgVariableUnits[kMCPhiTildePP] = "rad";
fgVariableNames[kMCCosThetaRM] = "MC cos(#theta_{RM})";
fgVariableUnits[kMCCosThetaRM] = "";
fgVariableNames[kCandidateId] = "";
fgVariableUnits[kCandidateId] = "";
fgVariableNames[kPairType] = "Pair type";
fgVariableUnits[kPairType] = "";
fgVariableNames[kVertexingLxy] = "Pair Lxy";
fgVariableUnits[kVertexingLxy] = "cm";
fgVariableNames[kMCVertexingLxy] = "MC Lxy";
fgVariableUnits[kMCVertexingLxy] = "cm";
fgVariableNames[kVertexingLz] = "Pair Lz";
fgVariableUnits[kVertexingLz] = "cm";
fgVariableNames[kMCVertexingLz] = "MC Lz";
fgVariableUnits[kMCVertexingLz] = "cm";
fgVariableNames[kVertexingLxyz] = "Pair Lxyz";
fgVariableUnits[kVertexingLxyz] = "cm";
fgVariableNames[kMCVertexingLxyz] = "MC Lxyz";
fgVariableUnits[kMCVertexingLxyz] = "cm";
fgVariableNames[kMCLxyExpected] = "MC Expected Lxy";
fgVariableUnits[kMCLxyExpected] = "cm";
fgVariableNames[kMCLxyzExpected] = "MC Expected Lxyz";
fgVariableUnits[kMCLxyzExpected] = "cm";
fgVariableNames[kVertexingLxyErr] = "Pair Lxy err.";
fgVariableUnits[kVertexingLxyErr] = "cm";
fgVariableNames[kVertexingLzErr] = "Pair Lz err.";
fgVariableUnits[kVertexingLzErr] = "cm";
fgVariableNames[kVertexingLxyzErr] = "Pair Lxyz err.";
fgVariableUnits[kVertexingLxyzErr] = "cm";
fgVariableNames[kVertexingTauz] = "Pair pseudo-proper Tauz";
fgVariableUnits[kVertexingTauz] = "ns";
fgVariableNames[kVertexingTauxy] = "Pair pseudo-proper Tauxy";
fgVariableUnits[kVertexingTauxy] = "ns";
fgVariableNames[kMCVertexingTauz] = "MC pseudo-proper Tauz";
fgVariableUnits[kMCVertexingTauz] = "ns";
fgVariableNames[kMCVertexingTauxy] = "MC pseudo-proper Tauxy";
fgVariableUnits[kMCVertexingTauxy] = "ns";
fgVariableNames[kVertexingTauzErr] = "Pair pseudo-proper Tauz err.";
fgVariableUnits[kVertexingTauzErr] = "ns";
fgVariableNames[kVertexingLxyProjected] = "Pair Lxy";
fgVariableUnits[kVertexingLxyProjected] = "cm";
fgVariableNames[kVertexingLzProjected] = "Pair Lz";
fgVariableUnits[kVertexingLzProjected] = "cm";
fgVariableNames[kVertexingLxyzProjected] = "Pair Lxyz";
fgVariableUnits[kVertexingLxyzProjected] = "cm";
fgVariableNames[kVertexingTauzProjected] = "Pair pseudo-proper Tauz";
fgVariableUnits[kVertexingTauzProjected] = "ns";
fgVariableNames[kVertexingTauxyProjected] = "Pair pseudo-proper Tauxy";
fgVariableUnits[kVertexingTauxyProjected] = "ns";
fgVariableNames[kVertexingTauxyProjectedPoleJPsiMass] = "Pair pseudo-proper Tauxy (with pole JPsi mass)";
fgVariableUnits[kVertexingTauxyProjectedPoleJPsiMass] = "ns";
fgVariableNames[kVertexingTauxyzProjected] = "Pair pseudo-proper Tauxyz";
fgVariableUnits[kVertexingTauxyzProjected] = "ns";
fgVariableNames[kMCVertexingLxyProjected] = "MC Lxy_{proj}";
fgVariableUnits[kMCVertexingLxyProjected] = "cm";
fgVariableNames[kMCVertexingLzProjected] = "MC Lz_{proj}";
fgVariableUnits[kMCVertexingLzProjected] = "cm";
fgVariableNames[kMCVertexingLxyzProjected] = "MC Lxyz_{proj}";
fgVariableUnits[kMCVertexingLxyzProjected] = "cm";
fgVariableNames[kMCVertexingTauzProjected] = "MC Tauz_{proj}";
fgVariableUnits[kMCVertexingTauzProjected] = "ns";
fgVariableNames[kMCVertexingTauxyProjected] = "MC Tauxy_{proj}";
fgVariableUnits[kMCVertexingTauxyProjected] = "ns";
fgVariableNames[kMCVertexingTauxyzProjected] = "MC Tauxyz_{proj}";
fgVariableUnits[kMCVertexingTauxyzProjected] = "ns";
fgVariableNames[kCosPointingAngle] = "cos(#theta_{pointing})";
fgVariableUnits[kCosPointingAngle] = "";
fgVariableNames[kMCCosPointingAngle] = "MC cos(#theta_{pointing})";
fgVariableUnits[kMCCosPointingAngle] = "";
fgVariableNames[kVertexingPz] = "Pz Pair";
fgVariableUnits[kVertexingPz] = "GeV/c";
fgVariableNames[kVertexingSV] = "Secondary Vertexing z";
fgVariableUnits[kVertexingSV] = "cm";
fgVariableNames[kVertexingTauxyErr] = "Pair pseudo-proper Tauxy err.";
fgVariableUnits[kVertexingTauxyErr] = "ns";
fgVariableNames[kVertexingProcCode] = "DCAFitterN<2> processing code";
fgVariableUnits[kVertexingProcCode] = "";
fgVariableNames[kVertexingChi2PCA] = "Pair #chi^{2} at PCA";
fgVariableUnits[kVertexingChi2PCA] = "";
fgVariableNames[kVertexingLxyOverErr] = "Pair Lxy/DLxy";
fgVariableUnits[kVertexingLxyOverErr] = "";
fgVariableNames[kVertexingLzOverErr] = "Pair Lz/DLz";
fgVariableUnits[kVertexingLzOverErr] = "";
fgVariableNames[kVertexingLxyzOverErr] = "Pair Lxyz/DLxyz";
fgVariableUnits[kVertexingLxyzOverErr] = "";
fgVariableNames[kKFTrack0DCAxyz] = "Daughter0 DCAxyz";
fgVariableUnits[kKFTrack0DCAxyz] = "cm";
fgVariableNames[kKFTrack1DCAxyz] = "Daughter1 DCAxyz";
fgVariableUnits[kKFTrack1DCAxyz] = "cm";
fgVariableNames[kKFTracksDCAxyzMax] = "Maximum DCAxyz of two daughters";
fgVariableUnits[kKFTracksDCAxyzMax] = "cm";
fgVariableNames[kKFDCAxyzBetweenProngs] = "DCAxyz between two daughters";
fgVariableUnits[kKFDCAxyzBetweenProngs] = "cm";
fgVariableNames[kKFTrack0DCAxy] = "Daughter0 DCAxy";
fgVariableUnits[kKFTrack0DCAxy] = "cm";
fgVariableNames[kKFTrack1DCAxy] = "Daughter1 DCAxy";
fgVariableUnits[kKFTrack1DCAxy] = "cm";
fgVariableNames[kKFTracksDCAxyMax] = "Maximum DCAxy of two daughters";
fgVariableUnits[kKFTracksDCAxyMax] = "cm";
fgVariableNames[kKFDCAxyBetweenProngs] = "DCAxy between two daughters";
fgVariableUnits[kKFDCAxyBetweenProngs] = "cm";
fgVariableNames[kKFChi2OverNDFGeo] = "Pair geometrical #chi^{2}/ndf";
fgVariableUnits[kKFChi2OverNDFGeo] = "";
fgVariableNames[kKFCosPA] = "cosPA";
fgVariableUnits[kKFCosPA] = "";
fgVariableNames[kKFNContributorsPV] = "Real Number of Trks to PV";
fgVariableUnits[kKFNContributorsPV] = "";
fgVariableNames[kQ1ZNAX] = "Q_{1,x}^{ZNA} ";
fgVariableUnits[kQ1ZNAX] = "";
fgVariableNames[kQ1ZNAY] = "Q_{1,y}^{ZNA} ";
fgVariableUnits[kQ1ZNAY] = "";
fgVariableNames[kQ1ZNCX] = "Q_{1,x}^{ZNC} ";
fgVariableUnits[kQ1ZNCX] = "";
fgVariableNames[kQ1ZNCY] = "Q_{1,y}^{ZNC} ";
fgVariableUnits[kQ1ZNCY] = "";
fgVariableNames[KIntercalibZNA] = "ZNA^{common} - (ZNA1 + ZNA2 + ZNA3 + ZNA4)";
fgVariableUnits[KIntercalibZNA] = "";
fgVariableNames[KIntercalibZNC] = "ZNC^{common} - (ZNC1 + ZNC2 + ZNC3 + ZNC4)";
fgVariableUnits[KIntercalibZNC] = "";
fgVariableNames[kQ1ZNACXX] = "Q_{1,x}^{ZNC} #dot Q_{1,x}^{ZNA} ";
fgVariableUnits[kQ1ZNACXX] = "";
fgVariableNames[kQ1ZNACYY] = "Q_{1,y}^{ZNC} #dot Q_{1,y}^{ZNA} ";
fgVariableUnits[kQ1ZNACYY] = "";
fgVariableNames[kQ1ZNACYX] = "Q_{1,y}^{ZNC} #dot Q_{1,x}^{ZNA} ";
fgVariableUnits[kQ1ZNACYX] = "";
fgVariableNames[kQ1ZNACXY] = "Q_{1,x}^{ZNC} #dot Q_{1,y}^{ZNA} ";
fgVariableUnits[kQ1ZNACXY] = "";
fgVariableNames[kQ1X0A] = "Q_{1,x}^{A} ";
fgVariableUnits[kQ1X0A] = "";
fgVariableNames[kQ1Y0A] = "Q_{1,y}^{A} ";
fgVariableUnits[kQ1Y0A] = "";
fgVariableNames[kQ1X0B] = "Q_{1,x}^{B} ";
fgVariableUnits[kQ1X0B] = "";
fgVariableNames[kQ1Y0B] = "Q_{1,y}^{B} ";
fgVariableUnits[kQ1Y0B] = "";
fgVariableNames[kQ1X0C] = "Q_{1,x}^{C} ";
fgVariableUnits[kQ1X0C] = "";
fgVariableNames[kQ1Y0C] = "Q_{1,y}^{C} ";
fgVariableUnits[kQ1Y0C] = "";
fgVariableNames[kQ2X0A] = "Q_{2,x}^{A} ";
fgVariableUnits[kQ2X0A] = "";
fgVariableNames[kQ2Y0A] = "Q_{2,y}^{A} ";
fgVariableUnits[kQ2Y0A] = "";
fgVariableNames[kQ2X0B] = "Q_{2,x}^{B} ";
fgVariableUnits[kQ2X0B] = "";
fgVariableNames[kQ2Y0B] = "Q_{2,y}^{B} ";
fgVariableUnits[kQ2Y0B] = "";
fgVariableNames[kQ2X0C] = "Q_{2,x}^{C} ";
fgVariableUnits[kQ2X0C] = "";
fgVariableNames[kQ2Y0C] = "Q_{2,y}^{C} ";
fgVariableUnits[kQ2Y0C] = "";
fgVariableNames[kQ2YYAB] = "<Q_{2,y}^{A}*Q_{2,y}^{B}> ";
fgVariableUnits[kQ2YYAB] = "";
fgVariableNames[kQ2XXAB] = "<Q_{2,x}^{A}*Q_{2,x}^{B}> ";
fgVariableUnits[kQ2XXAB] = "";
fgVariableNames[kQ2XYAB] = "<Q_{2,x}^{A}*Q_{2,y}^{B}> ";
fgVariableUnits[kQ2XYAB] = "";
fgVariableNames[kQ2YXAB] = "<Q_{2,y}^{A}*Q_{2,x}^{B}> ";
fgVariableUnits[kQ2YXAB] = "";
fgVariableNames[kQ2YYAC] = "<Q_{2,y}^{A}*Q_{2,y}^{C}> ";
fgVariableUnits[kQ2YYAC] = "";
fgVariableNames[kQ2XXAC] = "<Q_{2,x}^{A}*Q_{2,x}^{C}> ";
fgVariableUnits[kQ2XXAC] = "";
fgVariableNames[kQ2XYAC] = "<Q_{2,x}^{A}*Q_{2,y}^{C}> ";
fgVariableUnits[kQ2XYAC] = "";
fgVariableNames[kQ2YXAC] = "<Q_{2,y}^{A}*Q_{2,x}^{C}> ";
fgVariableUnits[kQ2YXAC] = "";
fgVariableNames[kQ2YYBC] = "<Q_{2,y}^{B}*Q_{2,y}^{C}> ";
fgVariableUnits[kQ2YYBC] = "";
fgVariableNames[kQ2XXBC] = "<Q_{2,x}^{B}*Q_{2,x}^{C}> ";
fgVariableUnits[kQ2XXBC] = "";
fgVariableNames[kQ2XYBC] = "<Q_{2,x}^{B}*Q_{2,y}^{C}> ";
fgVariableUnits[kQ2XYBC] = "";
fgVariableNames[kQ2YXBC] = "<Q_{2,y}^{B}*Q_{2,x}^{C}> ";
fgVariableUnits[kQ2YXBC] = "";
fgVariableNames[kMultA] = "N_{ch}^{A} ";
fgVariableUnits[kMultA] = "";
fgVariableNames[kMultB] = "N_{ch}^{B} ";
fgVariableUnits[kMultB] = "";
fgVariableNames[kMultC] = "N_{ch}^{C} ";
fgVariableUnits[kMultC] = "";
fgVariableNames[kQ3X0A] = "Q_{3,x}^{A} ";
fgVariableUnits[kQ3X0A] = "";
fgVariableNames[kQ3Y0A] = "Q_{3,y}^{A} ";
fgVariableUnits[kQ3Y0A] = "";
fgVariableNames[kQ3X0B] = "Q_{3,x}^{B} ";
fgVariableUnits[kQ3X0B] = "";
fgVariableNames[kQ3Y0B] = "Q_{3,y}^{B} ";
fgVariableUnits[kQ3Y0B] = "";
fgVariableNames[kQ3X0C] = "Q_{3,x}^{C} ";