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fabstoec |
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#include "MitPhysics/Mods/interface/PhotonPairSelector.h"
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#include "MitAna/DataTree/interface/PhotonCol.h"
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#include "MitAna/DataTree/interface/PFCandidateCol.h"
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#include "MitPhysics/Init/interface/ModNames.h"
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#include "MitPhysics/Utils/interface/IsolationTools.h"
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#include "MitPhysics/Utils/interface/PhotonTools.h"
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#include "MitPhysics/Utils/interface/VertexTools.h"
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#include <TNtuple.h>
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#include <TRandom3.h>
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using namespace mithep;
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ClassImp(mithep::PhotonPairSelector)
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//--------------------------------------------------------------------------------------------------
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PhotonPairSelector::PhotonPairSelector(const char *name, const char *title) :
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// Base Module...
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BaseMod (name,title),
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// define all the Branches to load
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fPhotonBranchName (Names::gkPhotonBrn),
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fElectronName (Names::gkElectronBrn),
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fConversionName (Names::gkMvfConversionBrn),
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fTrackBranchName (Names::gkTrackBrn),
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fPileUpDenName (Names::gkPileupEnergyDensityBrn),
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fPVName (Names::gkPVBeamSpotBrn),
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fBeamspotName (Names::gkBeamSpotBrn),
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fPFCandName (Names::gkPFCandidatesBrn),
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// MC specific stuff...
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fMCParticleName (Names::gkMCPartBrn),
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fPileUpName (Names::gkPileupInfoBrn),
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fGoodPhotonsName (ModNames::gkGoodPhotonsName),
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// ----------------------------------------
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// Selection Types
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fPhotonSelType ("NoSelection"),
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fVertexSelType ("StdSelection"),
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fPhSelType (kNoPhSelection),
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fVtxSelType (kStdVtxSelection),
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// ----------------------------------------
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fPhotonPtMin (20.0),
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fPhotonEtaMax (2.5),
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fLeadingPtMin (40.0),
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fTrailingPtMin (30.0),
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fIsData (false),
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fPhotonsFromBranch (true),
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fPVFromBranch (true),
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// ----------------------------------------
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// collections....
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fPhotons (0),
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fElectrons (0),
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fConversions (0),
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fTracks (0),
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fPileUpDen (0),
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fPV (0),
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fBeamspot (0),
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fPFCands (0),
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fMCParticles (0),
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fPileUp (0),
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// ---------------------------------------
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fDataEnCorr_EB_hR9 (0.),
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fDataEnCorr_EB_lR9 (0.),
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fDataEnCorr_EE_hR9 (0.),
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fDataEnCorr_EE_lR9 (0.),
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fRunStart (0),
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fRunEnd (0),
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fMCSmear_EB_hR9 (0.),
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fMCSmear_EB_lR9 (0.),
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fMCSmear_EE_hR9 (0.),
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fMCSmear_EE_lR9 (0.),
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// ---------------------------------------
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rng (new TRandom3()),
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// ---------------------------------------
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fDoDataEneCorr (true),
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fDoMCSmear (true),
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fDoVtxSelection (true)
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{
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// Constructor.
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}
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PhotonPairSelector::~PhotonPairSelector(){
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if(rng) delete rng;
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}
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//--------------------------------------------------------------------------------------------------
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void PhotonPairSelector::Process()
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{
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// ------------------------------------------------------------
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// Process entries of the tree.
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LoadEventObject(fPhotonBranchName, fPhotons);
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LoadEventObject(fElectronName, fElectrons);
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LoadEventObject(fConversionName, fConversions);
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LoadEventObject(fTrackBranchName, fTracks);
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LoadEventObject(fPileUpDenName, fPileUpDen);
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LoadEventObject(fPVName, fPV);
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LoadEventObject(fBeamspotName, fBeamspot);
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LoadEventObject(fPFCandName, fPFCands);
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if( !fIsData ) {
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LoadBranch(fMCParticleName);
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LoadBranch(fPileUpName);
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}
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// -----------------------------------------------------------
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// OUtput Photon Collection. It will ALWAYS conatrin either 0 or 2 Photons
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PhotonOArr *GoodPhotons = new PhotonOArr;
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GoodPhotons->SetName(fGoodPhotonsName);
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GoodPhotons->SetOwner(kTRUE);
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// ------------------------------------------------------------
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// load event based information
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Float_t _numPU = -1.; // some sensible default values....
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Float_t _tRho = -99.;
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if( fPileUpDen->GetEntries() > 0 ) _tRho = (Double_t) fPileUpDen->At(0)->RhoRandomLowEta();
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if( !fIsData ) _numPU = (Float_t) fPileUp ->At(0)->GetPU_NumInteractions();
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const BaseVertex *bsp = dynamic_cast<const BaseVertex*>(fBeamspot->At(0));
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// ------------------------------------------------------------
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// Get Event header for Run info etc.
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const EventHeader* evtHead = this->GetEventHeader();
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unsigned int evtNum = evtHead->EvtNum();
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Float_t _evtNum1 = (Float_t) ( (int) (evtNum/10000.) );
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Float_t _evtNum2 = (Float_t) ( (int) (evtNum % 10000) );
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UInt_t runNumber = evtHead->RunNum();
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Float_t _runNum = (Float_t) runNumber;
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Float_t _lumiSec = (Float_t) evtHead->LumiSec();
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// ------------------------------------------------------------
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// here we'll store the preselected Photons (and which CiCCategory they are...)
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PhotonOArr* preselPh = new PhotonOArr;
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std::vector<PhotonTools::CiCBaseLineCats> preselCat;
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preselCat.resize(0);
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// 1. we do the pre-selection; but keep the non-passing photons in a secont container...
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for (UInt_t i=0; i<fPhotons->GetEntries(); ++i) {
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const Photon *ph = fPhotons->At(i);
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if(ph->SCluster()->AbsEta()>= fPhotonEtaMax || (ph->SCluster()->AbsEta()>=1.4442 && ph->SCluster()->AbsEta()<=1.566)) continue;
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if(ph->Et() < fPhotonPtMin) continue;
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if(ph->HadOverEm() > 0.15) continue;
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if(ph->IsEB()) {
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if(ph->CoviEtaiEta() > 0.013) continue;
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} else {
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if(ph->CoviEtaiEta() > 0.03) continue;
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}
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preselPh->Add(ph);
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preselCat.push_back(PhotonTools::CiCBaseLineCat(ph));
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}
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// ------------------------------------------------------------
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// compute how many pairs there are ...
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unsigned int numPairs = 0;
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if( preselPh->GetEntries() > 0) numPairs = (preselPh->GetEntries()-1)*preselPh->GetEntries()/2;
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// ... and create all possible pairs of pre-selected photons
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std::vector<unsigned int> idx1st;
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std::vector<unsigned int> idx2nd;
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std::vector<PhotonTools::CiCBaseLineCats> cat1st;
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std::vector<PhotonTools::CiCBaseLineCats> cat2nd;
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// ... this will be used to store whether a givne pair passes the cuts
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std::vector<bool> pairPasses;
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if(numPairs > 0) {
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for(unsigned int i1st = 0; i1st <preselPh->GetEntries() - 1; ++i1st) {
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for(unsigned int i2nd = i1st + 1; i2nd <preselPh->GetEntries(); ++i2nd) {
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idx1st.push_back(i1st);
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idx2nd.push_back(i2nd);
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pairPasses.push_back(true);
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}
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}
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}
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// ------------------------------------------------------------
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// array to store the index of 'chosen Vtx' for each pair
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const Vertex** theVtx = new const Vertex*[numPairs]; // holds the 'chosen' Vtx for each Pair
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Photon** fixPh1st = new Photon*[numPairs]; // holds the 1st Photon for each Pair
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Photon** fixPh2nd = new Photon*[numPairs]; // holds the 2nd photon for each Pair
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// store pair-indices for pairs passing the selection
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std::vector<unsigned int> passPairs;
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passPairs.resize(0);
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// ------------------------------------------------------------
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// Loop over all Pairs and to the 'incredible machine' running....
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for(unsigned int iPair = 0; iPair < numPairs; ++iPair) {
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// first we need a hard copy of the incoming photons
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fixPh1st[iPair] = new Photon(*preselPh->At(idx1st[iPair]));
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fixPh2nd[iPair] = new Photon(*preselPh->At(idx2nd[iPair]));
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// we also store the category, so we don't have to ask all the time...
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cat1st.push_back(preselCat[idx1st[iPair]]);
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cat2nd.push_back(preselCat[idx2nd[iPair]]);
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// now we dicide if we either scale (Data) or Smear (MC) the Photons
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if (fIsData) {
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if(fDoDataEneCorr) {
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// statring with scale = 1.
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double scaleFac1 = 1.;
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double scaleFac2 = 1.;
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// checking the run Rangees ...
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Int_t runRange = FindRunRangeIdx(runNumber);
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if(runRange > -1) {
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scaleFac1 += GetDataEnCorr(runRange, cat1st[iPair]);
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scaleFac2 += GetDataEnCorr(runRange, cat2nd[iPair]);
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}
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PhotonTools::ScalePhoton(fixPh1st[iPair], scaleFac1);
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PhotonTools::ScalePhoton(fixPh2nd[iPair], scaleFac2);
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}
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} else {
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if(fDoMCSmear) {
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// get the seed to do deterministic smearing...
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UInt_t seedBase = (UInt_t) evtNum + (UInt_t) _runNum + (UInt_t) _lumiSec;
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UInt_t seed1 = seedBase + (UInt_t) fixPh1st[iPair]->E() + (UInt_t) (TMath::Abs(10.*fixPh1st[iPair]->SCluster()->Eta()));
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UInt_t seed2 = seedBase + (UInt_t) fixPh2nd[iPair]->E() + (UInt_t) (TMath::Abs(10.*fixPh2nd[iPair]->SCluster()->Eta()));
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// get the smearing for MC photons..
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double width1 = GetMCSmearFac(cat1st[iPair]);
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double width2 = GetMCSmearFac(cat2nd[iPair]);
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PhotonTools::SmearPhoton(fixPh1st[iPair], rng, width1, seed1);
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PhotonTools::SmearPhoton(fixPh2nd[iPair], rng, width2, seed2);
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}
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}
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// store the vertex for this pair
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switch( fVtxSelType ){
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case kStdVtxSelection:
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theVtx[iPair] = fPV->At(0);
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break;
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case kCiCVtxSelection:
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theVtx[iPair] = VertexTools::findVtxBasicRanking(fixPh1st[iPair],fixPh2nd[iPair], bsp, fPV, fConversions);
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break;
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case kMITVtxSelection:
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// need PFCandidate Collection
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theVtx[iPair] = VertexTools::BestVtx(fPFCands, fPV, bsp, mithep::FourVector((fixPh1st[iPair]->Mom()+fixPh2nd[iPair]->Mom())));
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break;
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default:
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theVtx[iPair] = fPV->At(0);
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}
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// fix the kinematics for both events
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FourVectorM newMom1st = fixPh1st[iPair]->MomVtx(theVtx[iPair]->Position());
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FourVectorM newMom2nd = fixPh2nd[iPair]->MomVtx(theVtx[iPair]->Position());
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fixPh1st[iPair]->SetMom(newMom1st.X(), newMom1st.Y(), newMom1st.Z(), newMom1st.E());
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fixPh2nd[iPair]->SetMom(newMom2nd.X(), newMom2nd.Y(), newMom2nd.Z(), newMom2nd.E());
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// check if both photons pass the CiC selection
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// FIX-ME: Add other possibilities....
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bool pass1 = false;
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bool pass2 = false;
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switch( fVtxSelType ){
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case kNoPhSelection:
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pass1 = ( fixPh1st[iPair]->Pt() > fLeadingPtMin );
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pass2 = ( fixPh2nd[iPair]->Pt() > fTrailingPtMin );
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break;
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case kCiCPhSelection:
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pass1 = PhotonTools::PassCiCSelection(fixPh1st[iPair], theVtx[iPair], fTracks, fElectrons, fPV, _tRho, 40.);
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if(pass1) pass2 = PhotonTools::PassCiCSelection(fixPh2nd[iPair], theVtx[iPair], fTracks, fElectrons, fPV, _tRho, 30.);
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break;
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case kMITPhSelection:
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// FIX-ME: This is a place-holder.. MIT guys: Please worj hard... ;)
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pass1 = ( fixPh1st[iPair]->Pt() > fLeadingPtMin );
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pass2 = ( fixPh2nd[iPair]->Pt() > fTrailingPtMin );
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break;
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default:
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277 |
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pass1 = true;
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pass2 = true;
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}
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// finally, if both Photons pass the selections, add the pair to the 'passing Pairs)
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281 |
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if( pass1 && pass2 ) passPairs.push_back(iPair);
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}
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283 |
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284 |
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285 |
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// ---------------------------------------------------------------
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286 |
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// ... we're almost done, stau focused...
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287 |
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// loop over all passing pairs and find the one with the highest sum Et
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288 |
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const Vertex* _theVtx = NULL;
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Photon* phHard = NULL;
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290 |
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Photon* phSoft = NULL;
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291 |
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PhotonTools::CiCBaseLineCats catPh1 = PhotonTools::kCiCNoCat;
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PhotonTools::CiCBaseLineCats catPh2 = PhotonTools::kCiCNoCat;
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294 |
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double maxSumEt = 0.;
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296 |
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for(unsigned int iPair=0; iPair<passPairs.size(); ++iPair){
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297 |
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double sumEt = fixPh1st[passPairs[iPair]]->Et();
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298 |
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sumEt += fixPh2nd[passPairs[iPair]]->Et();
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299 |
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if( sumEt > maxSumEt ) {
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300 |
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maxSumEt = sumEt;
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301 |
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phHard = fixPh1st[passPairs[iPair]];
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phSoft = fixPh2nd[passPairs[iPair]];
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catPh1 = cat1st[passPairs[iPair]];
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304 |
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catPh2 = cat2nd[passPairs[iPair]];
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_theVtx = theVtx[iPair];
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306 |
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}
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307 |
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}
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308 |
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309 |
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// ---------------------------------------------------------------
|
310 |
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// we have the Photons (*PARTY*)... compute some useful qunatities
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311 |
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312 |
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Float_t _theVtxZ = -999.;
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313 |
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314 |
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if(phHard && phSoft) {
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315 |
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GoodPhotons->AddOwned(phHard);
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316 |
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GoodPhotons->AddOwned(phSoft);
|
317 |
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}
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318 |
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319 |
|
|
if(_theVtx) _theVtxZ=_theVtx->Position().Z();
|
320 |
|
|
|
321 |
|
|
// sort according to pt
|
322 |
|
|
GoodPhotons->Sort();
|
323 |
|
|
|
324 |
|
|
// add to event for other modules to use
|
325 |
|
|
AddObjThisEvt(GoodPhotons);
|
326 |
|
|
|
327 |
|
|
// delete auxiliary photon collection...
|
328 |
|
|
delete preselPh;
|
329 |
|
|
delete[] theVtx;
|
330 |
|
|
|
331 |
|
|
// Fill the useful information (mass and di-photon pt)
|
332 |
|
|
bool doFill = ( phHard && phSoft );
|
333 |
|
|
Float_t _mass = ( doFill ? (phHard->Mom()+phSoft->Mom()).M() : -100.);
|
334 |
|
|
Float_t _ptgg = ( doFill ? (phHard->Mom()+phSoft->Mom()).Pt() : -100.);
|
335 |
|
|
|
336 |
|
|
// in case of a MC event, try to find Higgs and Higgs decay Z poisition
|
337 |
|
|
Float_t _pth = -100.;
|
338 |
|
|
Float_t _decayZ = -100.;
|
339 |
|
|
if( !fIsData ) FindHiggsPtAndZ(_pth, _decayZ);
|
340 |
|
|
|
341 |
|
|
Float_t evtCat = -1.;
|
342 |
|
|
if( doFill ) {
|
343 |
|
|
evtCat = GetEventCat(catPh1, catPh2);
|
344 |
|
|
if(_ptgg < 40.) evtCat += 4.;
|
345 |
|
|
}
|
346 |
|
|
|
347 |
|
|
Float_t fillEvent[] = { _tRho,
|
348 |
|
|
_pth,
|
349 |
|
|
_decayZ,
|
350 |
|
|
_theVtxZ,
|
351 |
|
|
_numPU,
|
352 |
|
|
_mass,
|
353 |
|
|
_ptgg,
|
354 |
|
|
_evtNum1,
|
355 |
|
|
_evtNum2,
|
356 |
|
|
_runNum,
|
357 |
|
|
_lumiSec,
|
358 |
|
|
(Float_t) catPh1,
|
359 |
|
|
(Float_t) catPh2,
|
360 |
|
|
evtCat
|
361 |
|
|
};
|
362 |
|
|
|
363 |
|
|
// to keep the Tree slim, only add in case we haqve found a passing pair...
|
364 |
|
|
if(_mass > 0.)
|
365 |
|
|
hCiCTuple->Fill(fillEvent);
|
366 |
|
|
|
367 |
|
|
return;
|
368 |
|
|
|
369 |
|
|
}
|
370 |
|
|
|
371 |
|
|
//--------------------------------------------------------------------------------------------------
|
372 |
|
|
void PhotonPairSelector::SlaveBegin()
|
373 |
|
|
{
|
374 |
|
|
// Run startup code on the computer (slave) doing the actual analysis. Here,
|
375 |
|
|
// we just request the photon collection branch.
|
376 |
|
|
|
377 |
|
|
ReqEventObject(fPhotonBranchName, fPhotons, fPhotonsFromBranch);
|
378 |
|
|
ReqEventObject(fTrackBranchName, fTracks, true);
|
379 |
|
|
ReqEventObject(fElectronName, fElectrons, true);
|
380 |
|
|
ReqEventObject(fPileUpDenName, fPileUpDen, true);
|
381 |
|
|
ReqEventObject(fPVName, fPV, fPVFromBranch);
|
382 |
|
|
ReqEventObject(fConversionName, fConversions,true);
|
383 |
|
|
ReqEventObject(fBeamspotName, fBeamspot, true);
|
384 |
|
|
ReqEventObject(fPFCandName, fPFCands, true);
|
385 |
|
|
|
386 |
|
|
if (!fIsData) {
|
387 |
|
|
ReqBranch(fPileUpName, fPileUp);
|
388 |
|
|
ReqBranch(fMCParticleName, fMCParticles);
|
389 |
|
|
}
|
390 |
|
|
|
391 |
|
|
if (fPhotonSelType.CompareTo("CiCSelection") == 0)
|
392 |
|
|
fPhSelType = kCiCPhSelection;
|
393 |
|
|
else if (fPhotonSelType.CompareTo("MITSelection") == 0)
|
394 |
|
|
fPhSelType = kMITPhSelection;
|
395 |
|
|
else
|
396 |
|
|
fPhSelType = kNoPhSelection;
|
397 |
|
|
|
398 |
|
|
if (fVertexSelType.CompareTo("CiCSelection") == 0)
|
399 |
|
|
fVtxSelType = kCiCVtxSelection;
|
400 |
|
|
else if (fVertexSelType.CompareTo("MITSelection") == 0)
|
401 |
|
|
fVtxSelType = kMITVtxSelection;
|
402 |
|
|
else
|
403 |
|
|
fVtxSelType = kStdVtxSelection;
|
404 |
|
|
|
405 |
|
|
hCiCTuple = new TNtuple("hCiCTuple","hCiCTuple","rho:higgspt:higgsZ:vtxZ:numPU:mass:ptgg:evtnum1:evtnum2:runnum:lumisec:ph1Cat:ph2Cat:evtCat");
|
406 |
|
|
|
407 |
|
|
AddOutput(hCiCTuple);
|
408 |
|
|
|
409 |
|
|
}
|
410 |
|
|
|
411 |
|
|
// ----------------------------------------------------------------------------------------
|
412 |
|
|
// some helpfer functions....
|
413 |
|
|
void PhotonPairSelector::FindHiggsPtAndZ(Float_t& pt, Float_t& decayZ) {
|
414 |
|
|
|
415 |
|
|
pt = -999.;
|
416 |
|
|
decayZ = -999.;
|
417 |
|
|
|
418 |
|
|
// loop over all GEN particles and look for status 1 photons
|
419 |
|
|
for(UInt_t i=0; i<fMCParticles->GetEntries(); ++i) {
|
420 |
|
|
const MCParticle* p = fMCParticles->At(i);
|
421 |
|
|
if( !(p->Is(MCParticle::kH)) ) continue;
|
422 |
|
|
pt=p->Pt();
|
423 |
|
|
decayZ = p->DecayVertex().Z();
|
424 |
|
|
break;
|
425 |
|
|
}
|
426 |
|
|
|
427 |
|
|
return;
|
428 |
|
|
}
|
429 |
|
|
|
430 |
|
|
// this routine looks for the idx of the run-range
|
431 |
|
|
Int_t PhotonPairSelector::FindRunRangeIdx(UInt_t run) {
|
432 |
|
|
Int_t runRange=-1;
|
433 |
|
|
for(UInt_t iRun = 0; iRun<fRunStart.size(); ++iRun) {
|
434 |
|
|
if( run >= fRunStart[iRun] && run <= fRunEnd[iRun]) {
|
435 |
|
|
runRange = (Int_t) iRun;
|
436 |
|
|
return runRange;
|
437 |
|
|
}
|
438 |
|
|
}
|
439 |
|
|
return runRange;
|
440 |
|
|
}
|
441 |
|
|
|
442 |
|
|
|
443 |
|
|
Double_t PhotonPairSelector::GetDataEnCorr(Int_t runRange, PhotonTools::CiCBaseLineCats cat) {
|
444 |
|
|
switch( cat ) {
|
445 |
|
|
case PhotonTools::kCiCCat1:
|
446 |
|
|
return fDataEnCorr_EB_hR9[runRange];
|
447 |
|
|
case PhotonTools::kCiCCat2:
|
448 |
|
|
return fDataEnCorr_EB_lR9[runRange];
|
449 |
|
|
case PhotonTools::kCiCCat3:
|
450 |
|
|
return fDataEnCorr_EE_hR9[runRange];
|
451 |
|
|
case PhotonTools::kCiCCat4:
|
452 |
|
|
return fDataEnCorr_EE_lR9[runRange];
|
453 |
|
|
default:
|
454 |
|
|
return 1.;
|
455 |
|
|
}
|
456 |
|
|
}
|
457 |
|
|
|
458 |
|
|
|
459 |
|
|
Double_t PhotonPairSelector::GetMCSmearFac(PhotonTools::CiCBaseLineCats cat) {
|
460 |
|
|
switch( cat ) {
|
461 |
|
|
case PhotonTools::kCiCCat1:
|
462 |
|
|
return fMCSmear_EB_hR9;
|
463 |
|
|
case PhotonTools::kCiCCat2:
|
464 |
|
|
return fMCSmear_EB_lR9;
|
465 |
|
|
case PhotonTools::kCiCCat3:
|
466 |
|
|
return fMCSmear_EE_hR9;
|
467 |
|
|
case PhotonTools::kCiCCat4:
|
468 |
|
|
return fMCSmear_EE_lR9;
|
469 |
|
|
default:
|
470 |
|
|
return 1.;
|
471 |
|
|
}
|
472 |
|
|
}
|
473 |
|
|
|
474 |
|
|
Float_t PhotonPairSelector::GetEventCat(PhotonTools::CiCBaseLineCats cat1, PhotonTools::CiCBaseLineCats cat2) {
|
475 |
|
|
|
476 |
|
|
bool ph1IsEB = (cat1 == PhotonTools::kCiCCat1 || cat1 == PhotonTools::kCiCCat2);
|
477 |
|
|
bool ph2IsEB = (cat2 == PhotonTools::kCiCCat1 || cat2 == PhotonTools::kCiCCat2);
|
478 |
|
|
|
479 |
|
|
bool ph1IsHR9 = (cat1 == PhotonTools::kCiCCat1 || cat1 == PhotonTools::kCiCCat3);
|
480 |
|
|
bool ph2IsHR9 = (cat2 == PhotonTools::kCiCCat1 || cat2 == PhotonTools::kCiCCat3);
|
481 |
|
|
|
482 |
|
|
if( ph1IsEB && ph2IsEB )
|
483 |
|
|
return ( ph1IsHR9 && ph2IsHR9 ? 0. : 1.);
|
484 |
|
|
|
485 |
|
|
return ( ph1IsHR9 && ph2IsHR9 ? 2. : 3.);
|
486 |
|
|
}
|