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// $Id: PhotonCiCMod.cc,v 1.2 2011/06/02 14:18:07 bendavid Exp $
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#include "MitPhysics/Mods/interface/PhotonCiCMod.h"
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#include "MitAna/DataTree/interface/PhotonCol.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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using namespace mithep;
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ClassImp(mithep::PhotonCiCMod)
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//--------------------------------------------------------------------------------------------------
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PhotonCiCMod::PhotonCiCMod(const char *name, const char *title) :
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BaseMod(name,title),
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fPhotonBranchName (Names::gkPhotonBrn),
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fGoodPhotonsName (ModNames::gkGoodPhotonsName),
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fTrackBranchName (Names::gkTrackBrn),
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fPileUpDenName (Names::gkPileupEnergyDensityBrn),
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fElectronName ("Electrons"),
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fPhotonPtMin(20.0),
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fApplySpikeRemoval(kFALSE),
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fAbsEtaMax(999.99),
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fPhotons(0),
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fTracks(0),
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fPileUpDen(0),
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fElectrons(0),
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fPVName("PrimaryVertexes"),
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fPV(0),
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fPVFromBranch(kTRUE)
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{
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// Constructor.
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}
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//--------------------------------------------------------------------------------------------------
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void PhotonCiCMod::Process()
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{
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// Process entries of the tree.
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LoadEventObject(fPhotonBranchName, fPhotons);
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PhotonOArr *GoodPhotons = new PhotonOArr;
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GoodPhotons->SetName(fGoodPhotonsName);
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Double_t _tRho = -1.;
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if (fPhotons->GetEntries()>0) {
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LoadEventObject(fTrackBranchName, fTracks);
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LoadEventObject(fPileUpDenName, fPileUpDen);
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LoadEventObject(fElectronName, fElectrons);
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LoadEventObject(fPVName, fPV);
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if(fPileUpDen->GetEntries() > 0)
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_tRho = (Double_t) fPileUpDen->At(0)->Rho();
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} else {
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AddObjThisEvt(GoodPhotons);
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return;
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}
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int numVertices = fPV->GetEntries();
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if(numVertices == 0) {
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AddObjThisEvt(GoodPhotons);
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return;
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}
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PhotonOArr* preselPh = new PhotonOArr;
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PhotonOArr* failingPh = new PhotonOArr;
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const Vertex** vtxRanked = new const Vertex*[numVertices];
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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->AbsEta() > 2.5) {
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failingPh->Add(ph);
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continue;
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}
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if(ph->Et() < 30.) {
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failingPh->Add(ph);
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continue;
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}
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if(ph->HadOverEm() > 0.15) {
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failingPh->Add(ph);
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continue;
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}
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if(ph->AbsEta() < 1.5) {
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if(ph->CoviEtaiEta() > 0.013) {
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failingPh->Add(ph);
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continue;
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}
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if(ph->EcalRecHitIsoDr03() > 10.) {
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failingPh->Add(ph);
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continue;
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}
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} else {
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if(ph->CoviEtaiEta() > 0.03) {
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failingPh->Add(ph);
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continue;
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}
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if(ph->EcalRecHitIsoDr03() > 10.) {
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failingPh->Add(ph);
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continue;
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}
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}
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preselPh->Add(ph);
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}
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// sort both by pt
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preselPh->Sort();
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failingPh->Sort();
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// if we don't have two photons in total, nothing to do...
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if( (preselPh->GetEntries() + failingPh->GetEntries() ) < 2) {
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AddObjThisEvt(GoodPhotons);
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delete preselPh;
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delete failingPh;
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return;
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}
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// now we assign the two hardest photons to be the ones to select the Vertex...
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double ptggV[2];
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ptggV[0] = 0.;
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ptggV[1] = 0.;
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for(unsigned int iPh =0; iPh < preselPh->GetEntries() && iPh < 2 ; ++iPh) {
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ptggV[0] += preselPh->At(iPh)->Px();
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ptggV[1] += preselPh->At(iPh)->Px();
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}
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for(unsigned int iPh =preselPh->GetEntries(); iPh < (preselPh->GetEntries()+failingPh->GetEntries()) && iPh < 2 ; ++iPh) {
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ptggV[0] += failingPh->At(iPh)->Px();
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ptggV[1] += failingPh->At(iPh)->Px();
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}
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double ptgg = TMath::Sqrt(ptggV[0]*ptggV[0]+ptggV[1]+ptggV[1]);
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// loop over all vertices and assigne the ranks
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int* ptbal_rank = new int[fPV->GetEntries()];
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int* ptasym_rank = new int[fPV->GetEntries()];
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int* total_rank = new int[fPV->GetEntries()];
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double* ptbal = new double[fPV->GetEntries()];
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double* ptasym = new double[fPV->GetEntries()];
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for(int iVtx = 0; iVtx < numVertices; ++iVtx) {
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const Vertex* _tVtx = fPV->At(iVtx);
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ptbal [iVtx] = 0.0;
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ptasym[iVtx] = 0.0;
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ptbal_rank [iVtx] = 1;
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ptasym_rank[iVtx] = 1;
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double ptvtx = 0.;
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for(unsigned int iTrk = 0; iTrk < _tVtx->NTracks(); ++iTrk) {
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const Track* _tTrk = _tVtx->Trk(iTrk);
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ptvtx += _tTrk->Pt();
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ptbal[iVtx]+= (_tTrk->Px()*ptggV[0])+(_tTrk->Py()*ptggV[1]);
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}
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ptbal [iVtx] = -ptbal[iVtx]/ptgg;
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ptasym[iVtx] = (ptvtx - ptgg)*(ptvtx+ptgg);
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for(int cVtx =0; cVtx < iVtx; ++cVtx) {
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if(ptbal [iVtx] > ptbal [cVtx])
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ptbal_rank [cVtx]++;
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else
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ptbal_rank [iVtx]++;
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if(ptasym [iVtx] > ptasym [cVtx])
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ptasym_rank [cVtx]++;
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else
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ptasym_rank [iVtx]++;
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}
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}
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// compute the total rank
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for(int iVtx = 0; iVtx < numVertices; ++iVtx) {
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ptbal_rank [iVtx] = ptbal_rank [iVtx]*ptasym_rank [iVtx]*(iVtx+1);
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total_rank [iVtx] = 0;
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for(int cVtx =0; cVtx < iVtx; ++cVtx) {
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if(ptbal_rank [iVtx] > ptbal_rank [cVtx])
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total_rank[iVtx]++;
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else
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total_rank[cVtx]++;
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}
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}
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// sort the Vtx by total rank
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for(int iVtx = 0; iVtx < numVertices; ++iVtx)
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vtxRanked[total_rank[iVtx]] = fPV->At(iVtx);
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// pick the higest ranked vertex
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const BaseVertex* theVtx = vtxRanked[0];
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// delete all utility arrays
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delete ptbal_rank ;
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delete ptasym_rank ;
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delete total_rank ;
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delete ptbal ;
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delete ptasym ;
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// fix all the photon kinematics using the new Vtx
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PhotonOArr *fixedPhotons = new PhotonOArr;
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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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// first copy this guy
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Photon* fPh = new Photon(*ph);
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const SuperCluster* sc = ph->SCluster();
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// compute the new Photon momentum (assuming zero mass)
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ThreeVectorC tPh_3mom = sc->Point() - theVtx->Position();
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tPh_3mom = tPh_3mom/tPh_3mom.R();
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fPh->SetMom(sc->Energy()*tPh_3mom.X(), sc->Energy()*tPh_3mom.Y(), sc->Energy()*tPh_3mom.Z(), sc->Energy());
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fixedPhotons->Add(fPh);
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}
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// these values are taken from the H2GGlobe code... (actually from Marco/s mail)
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float cic4_allcuts_temp_sublead[] = {
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3.8, 2.2, 1.77, 1.29,
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11.7, 3.4, 3.9, 1.84,
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3.5, 2.2, 2.3, 1.45,
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0.0106, 0.0097, 0.028, 0.027,
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0.082, 0.062, 0.065, 0.048,
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0.94, 0.36, 0.94, 0.32,
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1., 0.062, 0.97, 0.97,
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1.5, 1.5, 1.5, 1.5 }; // the last line is POixelmatchVeto and un-used
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for (UInt_t i=0; i<fixedPhotons->GetEntries(); ++i) {
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const Photon *ph = fixedPhotons->At(i);
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// cut on Et instead of Pt???
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if ( ph->Pt() <= fPhotonPtMin ) continue;
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if ( ph->AbsEta() >= fAbsEtaMax ) continue;
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if ( ph->SCluster()->AbsEta()>=2.5 || (ph->SCluster()->AbsEta()>=1.4442 && ph->SCluster()->AbsEta()<=1.566) )
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continue;
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Bool_t isbarrel = ph->SCluster()->AbsEta()<1.5;
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Bool_t passSpikeRemovalFilter = kTRUE;
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if (ph->SCluster() && ph->SCluster()->Seed()) {
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if(ph->SCluster()->Seed()->Energy() > 5.0 &&
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ph->SCluster()->Seed()->EMax() / ph->SCluster()->Seed()->E3x3() > 0.95 )
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passSpikeRemovalFilter = kFALSE;
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}
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if (fApplySpikeRemoval && !passSpikeRemovalFilter) continue;
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// compute all relevant observables first
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double ecalIso = ph->EcalRecHitIsoDr03();
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double hcalIso = ph->HcalTowerSumEtDr03();
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double trackIso1 = IsolationTools::CiCTrackIsolation(ph, theVtx, 0.3, 0.02, 0.0, 0.0, 0.1, 1.0, fTracks, NULL);
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double trackIso2 = IsolationTools::CiCTrackIsolation(ph, theVtx, 0.3, 0.02, 0.0, 0.0, 0.1, 1.0, fTracks, fPV);
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double trackIso3 = IsolationTools::CiCTrackIsolation(ph, theVtx, 0.4, 0.02, 0.0, 0.0, 0.1, 1.0, fTracks, NULL);
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double combIso1 = ecalIso+hcalIso+trackIso1 - 0.17*_tRho;
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double combIso2 = ecalIso+hcalIso+trackIso2 - 0.52*_tRho;
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double tIso1 = (combIso1) *50./ph->Et();
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double tIso2 = (combIso2) *50./ph->Et();
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double tIso3 = (trackIso3)*50./ph->Et();
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double covIEtaIEta =ph->CoviEtaiEta();
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double HoE = ph->HadOverEm();
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double R9 = ph->R9();
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double dRTrack = PhotonTools::ElectronVetoCiC(ph, fElectrons);
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// check which category it is ...
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int _tCat = 1;
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if ( !isbarrel ) _tCat = 3;
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if ( R9 < 0.94 ) _tCat++;
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if( tIso1 < cic4_allcuts_temp_sublead[_tCat-1+0*4] &&
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tIso2 < cic4_allcuts_temp_sublead[_tCat-1+1*4] &&
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tIso3 < cic4_allcuts_temp_sublead[_tCat-1+2*4] &&
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covIEtaIEta < cic4_allcuts_temp_sublead[_tCat-1+3*4] &&
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HoE < cic4_allcuts_temp_sublead[_tCat-1+4*4] &&
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R9 > cic4_allcuts_temp_sublead[_tCat-1+5*4] &&
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dRTrack*100. > cic4_allcuts_temp_sublead[_tCat-1+6*4] &&
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isbarrel ) GoodPhotons->Add(ph);
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}
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// sort according to pt
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GoodPhotons->Sort();
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// add to event for other modules to use
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AddObjThisEvt(GoodPhotons);
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}
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//--------------------------------------------------------------------------------------------------
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void PhotonCiCMod::SlaveBegin()
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{
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// Run startup code on the computer (slave) doing the actual analysis. Here,
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// we just request the photon collection branch.
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ReqEventObject(fPhotonBranchName, fPhotons, kTRUE);
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ReqEventObject(fTrackBranchName, fTracks, kTRUE);
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ReqEventObject(fElectronName, fElectrons, kTRUE);
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ReqEventObject(fPileUpDenName, fPileUpDen, kTRUE);
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ReqEventObject(fPVName, fPV, fPVFromBranch);
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}
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