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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 "MitAna/DataTree/interface/StableData.h"
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#include "MitAna/DataTree/interface/StableParticle.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 "MitPhysics/Utils/interface/PhotonFix.h"
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#include "TDataMember.h"
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#include <TNtuple.h>
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#include <TRandom3.h>
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#include <TSystem.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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fGoodElectronName (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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fGoodElectronsFromBranch (kTRUE),
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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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fApplyEleVeto (true),
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fInvertElectronVeto(kFALSE)
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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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// -----------------------------------------------------------
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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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// add to event for other modules to use
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AddObjThisEvt(GoodPhotons);
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if (fPhotons->GetEntries()<2) return;
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LoadEventObject(fElectronName, fElectrons);
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LoadEventObject(fGoodElectronName, fGoodElectrons);
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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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// ------------------------------------------------------------
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// load event based information
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Int_t _numPU = -1.; // some sensible default values....
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Int_t _numPUminus = -1.; // some sensible default values....
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Int_t _numPUplus = -1.; // some sensible default values....
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Float_t _tRho = -99.;
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if( fPileUpDen->GetEntries() > 0 )
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_tRho = (Double_t) fPileUpDen->At(0)->RhoRandomLowEta();
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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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}
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if (preselPh->GetEntries()<2) return;
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// Sorry... need the second loop here in order to sort & assign the right Categories..
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preselPh->Sort();
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for(unsigned int iPh = 0; iPh <preselPh->GetEntries(); ++iPh) {
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const Photon* ph = preselPh->At(iPh);
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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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//set PV ref in photons
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fixPh1st[iPair]->SetPV(theVtx[iPair]);
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fixPh2nd[iPair]->SetPV(theVtx[iPair]);
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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( fPhSelType ){
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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, fLeadingPtMin, fApplyEleVeto);
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if(pass1) pass2 = PhotonTools::PassCiCSelection(fixPh2nd[iPair], theVtx[iPair], fTracks, fElectrons, fPV, _tRho, fTrailingPtMin, fApplyEleVeto);
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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 work 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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pass1 = true;
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pass2 = true;
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}
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//match to good electrons if requested
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| 319 |
if (fInvertElectronVeto) {
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| 320 |
pass1 &= !PhotonTools::PassElectronVeto(fixPh1st[iPair],fGoodElectrons);
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pass2 &= !PhotonTools::PassElectronVeto(fixPh2nd[iPair],fGoodElectrons);
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| 322 |
}
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| 323 |
// finally, if both Photons pass the selections, add the pair to the 'passing Pairs)
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| 324 |
if( pass1 && pass2 ) passPairs.push_back(iPair);
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}
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| 327 |
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// ---------------------------------------------------------------
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// ... we're almost done, stau focused...
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| 330 |
// loop over all passing pairs and find the one with the highest sum Et
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const Vertex* _theVtx = NULL;
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| 332 |
Photon* phHard = NULL;
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Photon* phSoft = NULL;
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| 334 |
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| 335 |
PhotonTools::CiCBaseLineCats catPh1 = PhotonTools::kCiCNoCat;
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| 336 |
PhotonTools::CiCBaseLineCats catPh2 = PhotonTools::kCiCNoCat;
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| 337 |
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| 338 |
double maxSumEt = 0.;
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| 339 |
for(unsigned int iPair=0; iPair<passPairs.size(); ++iPair){
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| 340 |
double sumEt = fixPh1st[passPairs[iPair]]->Et();
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| 341 |
sumEt += fixPh2nd[passPairs[iPair]]->Et();
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| 342 |
if( sumEt > maxSumEt ) {
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| 343 |
maxSumEt = sumEt;
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| 344 |
phHard = fixPh1st[passPairs[iPair]];
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| 345 |
phSoft = fixPh2nd[passPairs[iPair]];
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| 346 |
catPh1 = cat1st[passPairs[iPair]];
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| 347 |
catPh2 = cat2nd[passPairs[iPair]];
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| 348 |
_theVtx = theVtx[iPair];
|
| 349 |
}
|
| 350 |
}
|
| 351 |
|
| 352 |
// ---------------------------------------------------------------
|
| 353 |
// we have the Photons (*PARTY*)... compute some useful qunatities
|
| 354 |
|
| 355 |
|
| 356 |
|
| 357 |
if(phHard && phSoft) {
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| 358 |
GoodPhotons->AddOwned(phHard);
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| 359 |
GoodPhotons->AddOwned(phSoft);
|
| 360 |
}
|
| 361 |
|
| 362 |
|
| 363 |
// sort according to pt
|
| 364 |
GoodPhotons->Sort();
|
| 365 |
|
| 366 |
// delete auxiliary photon collection...
|
| 367 |
delete preselPh;
|
| 368 |
delete[] theVtx;
|
| 369 |
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| 370 |
return;
|
| 371 |
|
| 372 |
}
|
| 373 |
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| 374 |
//--------------------------------------------------------------------------------------------------
|
| 375 |
void PhotonPairSelector::SlaveBegin()
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| 376 |
{
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| 377 |
// Run startup code on the computer (slave) doing the actual analysis. Here,
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| 378 |
// we just request the photon collection branch.
|
| 379 |
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| 380 |
ReqEventObject(fPhotonBranchName, fPhotons, fPhotonsFromBranch);
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| 381 |
ReqEventObject(fTrackBranchName, fTracks, true);
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| 382 |
ReqEventObject(fElectronName, fElectrons, true);
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| 383 |
ReqEventObject(fGoodElectronName, fGoodElectrons, fGoodElectronsFromBranch);
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| 384 |
ReqEventObject(fPileUpDenName, fPileUpDen, true);
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| 385 |
ReqEventObject(fPVName, fPV, fPVFromBranch);
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| 386 |
ReqEventObject(fConversionName, fConversions,true);
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| 387 |
ReqEventObject(fBeamspotName, fBeamspot, true);
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| 388 |
ReqEventObject(fPFCandName, fPFCands, true);
|
| 389 |
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| 390 |
if (!fIsData) {
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| 391 |
ReqBranch(fPileUpName, fPileUp);
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| 392 |
ReqBranch(fMCParticleName, fMCParticles);
|
| 393 |
}
|
| 394 |
|
| 395 |
if (fPhotonSelType.CompareTo("CiCSelection") == 0)
|
| 396 |
fPhSelType = kCiCPhSelection;
|
| 397 |
else if (fPhotonSelType.CompareTo("MITSelection") == 0)
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| 398 |
fPhSelType = kMITPhSelection;
|
| 399 |
else
|
| 400 |
fPhSelType = kNoPhSelection;
|
| 401 |
|
| 402 |
if (fVertexSelType.CompareTo("CiCSelection") == 0)
|
| 403 |
fVtxSelType = kCiCVtxSelection;
|
| 404 |
else if (fVertexSelType.CompareTo("MITSelection") == 0)
|
| 405 |
fVtxSelType = kMITVtxSelection;
|
| 406 |
else
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| 407 |
fVtxSelType = kStdVtxSelection;
|
| 408 |
|
| 409 |
}
|
| 410 |
|
| 411 |
// ----------------------------------------------------------------------------------------
|
| 412 |
// some helpfer functions....
|
| 413 |
void PhotonPairSelector::FindHiggsPtAndZ(Float_t& pt, Float_t& decayZ, Float_t& mass) {
|
| 414 |
|
| 415 |
pt = -999.;
|
| 416 |
decayZ = -999.;
|
| 417 |
mass = -999.;
|
| 418 |
|
| 419 |
// loop over all GEN particles and look for status 1 photons
|
| 420 |
for(UInt_t i=0; i<fMCParticles->GetEntries(); ++i) {
|
| 421 |
const MCParticle* p = fMCParticles->At(i);
|
| 422 |
if( p->Is(MCParticle::kH) || (!fApplyEleVeto && p->AbsPdgId()==23) ) {
|
| 423 |
pt=p->Pt();
|
| 424 |
decayZ = p->DecayVertex().Z();
|
| 425 |
mass = p->Mass();
|
| 426 |
break;
|
| 427 |
}
|
| 428 |
}
|
| 429 |
|
| 430 |
return;
|
| 431 |
}
|
| 432 |
|
| 433 |
// this routine looks for the idx of the run-range
|
| 434 |
Int_t PhotonPairSelector::FindRunRangeIdx(UInt_t run) {
|
| 435 |
Int_t runRange=-1;
|
| 436 |
for(UInt_t iRun = 0; iRun<fRunStart.size(); ++iRun) {
|
| 437 |
if( run >= fRunStart[iRun] && run <= fRunEnd[iRun]) {
|
| 438 |
runRange = (Int_t) iRun;
|
| 439 |
return runRange;
|
| 440 |
}
|
| 441 |
}
|
| 442 |
return runRange;
|
| 443 |
}
|
| 444 |
|
| 445 |
|
| 446 |
Double_t PhotonPairSelector::GetDataEnCorr(Int_t runRange, PhotonTools::CiCBaseLineCats cat) {
|
| 447 |
switch( cat ) {
|
| 448 |
case PhotonTools::kCiCCat1:
|
| 449 |
return fDataEnCorr_EB_hR9[runRange];
|
| 450 |
case PhotonTools::kCiCCat2:
|
| 451 |
return fDataEnCorr_EB_lR9[runRange];
|
| 452 |
case PhotonTools::kCiCCat3:
|
| 453 |
return fDataEnCorr_EE_hR9[runRange];
|
| 454 |
case PhotonTools::kCiCCat4:
|
| 455 |
return fDataEnCorr_EE_lR9[runRange];
|
| 456 |
default:
|
| 457 |
return 1.;
|
| 458 |
}
|
| 459 |
}
|
| 460 |
|
| 461 |
|
| 462 |
Double_t PhotonPairSelector::GetMCSmearFac(PhotonTools::CiCBaseLineCats cat) {
|
| 463 |
switch( cat ) {
|
| 464 |
case PhotonTools::kCiCCat1:
|
| 465 |
return fMCSmear_EB_hR9;
|
| 466 |
case PhotonTools::kCiCCat2:
|
| 467 |
return fMCSmear_EB_lR9;
|
| 468 |
case PhotonTools::kCiCCat3:
|
| 469 |
return fMCSmear_EE_hR9;
|
| 470 |
case PhotonTools::kCiCCat4:
|
| 471 |
return fMCSmear_EE_lR9;
|
| 472 |
default:
|
| 473 |
return 1.;
|
| 474 |
}
|
| 475 |
}
|
| 476 |
|
| 477 |
Float_t PhotonPairSelector::GetEventCat(PhotonTools::CiCBaseLineCats cat1, PhotonTools::CiCBaseLineCats cat2) {
|
| 478 |
|
| 479 |
bool ph1IsEB = (cat1 == PhotonTools::kCiCCat1 || cat1 == PhotonTools::kCiCCat2);
|
| 480 |
bool ph2IsEB = (cat2 == PhotonTools::kCiCCat1 || cat2 == PhotonTools::kCiCCat2);
|
| 481 |
|
| 482 |
bool ph1IsHR9 = (cat1 == PhotonTools::kCiCCat1 || cat1 == PhotonTools::kCiCCat3);
|
| 483 |
bool ph2IsHR9 = (cat2 == PhotonTools::kCiCCat1 || cat2 == PhotonTools::kCiCCat3);
|
| 484 |
|
| 485 |
if( ph1IsEB && ph2IsEB )
|
| 486 |
return ( ph1IsHR9 && ph2IsHR9 ? 0. : 1.);
|
| 487 |
|
| 488 |
return ( ph1IsHR9 && ph2IsHR9 ? 2. : 3.);
|
| 489 |
}
|
| 490 |
|
