| 1 |
// $Id: ElectronCleaningMod.cc,v 1.10 2010/06/28 21:08:19 ceballos Exp $
|
| 2 |
|
| 3 |
#include "MitPhysics/Mods/interface/ElectronCleaningMod.h"
|
| 4 |
#include "MitCommon/MathTools/interface/MathUtils.h"
|
| 5 |
#include "MitAna/DataTree/interface/ElectronCol.h"
|
| 6 |
#include "MitAna/DataTree/interface/MuonCol.h"
|
| 7 |
#include "MitAna/DataTree/interface/Track.h"
|
| 8 |
#include "MitPhysics/Init/interface/ModNames.h"
|
| 9 |
|
| 10 |
using namespace mithep;
|
| 11 |
|
| 12 |
ClassImp(mithep::ElectronCleaningMod)
|
| 13 |
|
| 14 |
//--------------------------------------------------------------------------------------------------
|
| 15 |
ElectronCleaningMod::ElectronCleaningMod(const char *name, const char *title) :
|
| 16 |
BaseMod(name,title),
|
| 17 |
fGoodElectronsName(ModNames::gkGoodElectronsName),
|
| 18 |
fCleanMuonsName(ModNames::gkCleanMuonsName),
|
| 19 |
fCleanElectronsName(ModNames::gkCleanElectronsName)
|
| 20 |
{
|
| 21 |
// Constructor.
|
| 22 |
}
|
| 23 |
|
| 24 |
//--------------------------------------------------------------------------------------------------
|
| 25 |
void ElectronCleaningMod::Process()
|
| 26 |
{
|
| 27 |
// Process entries of the tree.
|
| 28 |
|
| 29 |
// get input collection
|
| 30 |
const MuonCol *CleanMuons = GetObjThisEvt<MuonCol>(fCleanMuonsName);
|
| 31 |
const ElectronCol *GoodElectrons = GetObjThisEvt<ElectronCol>(fGoodElectronsName);
|
| 32 |
|
| 33 |
// Go through all electrons and remove electron overlaps with muons and duplicates.
|
| 34 |
std::vector<const Electron*> CleanElTemp;
|
| 35 |
for (UInt_t i=0; i<GoodElectrons->GetEntries(); ++i) {
|
| 36 |
const Electron *e = GoodElectrons->At(i);
|
| 37 |
|
| 38 |
FourVectorM mom(e->Mom());
|
| 39 |
|
| 40 |
// Check whether it overlaps with a good muon: If the muon and electron both have
|
| 41 |
// tracker tracks then compare the tracks, otherwise
|
| 42 |
Bool_t isMuonOverlap = kFALSE;
|
| 43 |
UInt_t n = CleanMuons->GetEntries();
|
| 44 |
for (UInt_t j=0; j<n; ++j) {
|
| 45 |
Double_t deltaR = MathUtils::DeltaR(CleanMuons->At(j)->Mom(), mom);
|
| 46 |
if (deltaR < 0.1) {
|
| 47 |
isMuonOverlap = kTRUE;
|
| 48 |
break;
|
| 49 |
}
|
| 50 |
}
|
| 51 |
|
| 52 |
if (isMuonOverlap)
|
| 53 |
continue;
|
| 54 |
|
| 55 |
// Check whether it overlaps with another electron candidate:
|
| 56 |
// Here I check whether we have two electron candidates with the same super cluster
|
| 57 |
// or two electron candidates with the same track. At the end we also check deltaR
|
| 58 |
// to be sure. If there is a duplicate we swap the old one with the new one if the new
|
| 59 |
// one has E/P closer to 1.0.
|
| 60 |
bool isElectronOverlap = kFALSE;
|
| 61 |
for (UInt_t j=0; j<CleanElTemp.size(); ++j) {
|
| 62 |
|
| 63 |
if (e->SCluster() == CleanElTemp[j]->SCluster() ||
|
| 64 |
e->Trk() == CleanElTemp[j]->Trk())
|
| 65 |
isElectronOverlap = kTRUE;
|
| 66 |
|
| 67 |
if (!isElectronOverlap) {
|
| 68 |
Double_t deltaR = MathUtils::DeltaR(CleanElTemp[j]->Mom(), mom);
|
| 69 |
if (deltaR < 0.1)
|
| 70 |
isElectronOverlap = kTRUE;
|
| 71 |
}
|
| 72 |
|
| 73 |
if (isElectronOverlap) {
|
| 74 |
if (TMath::Abs(CleanElTemp[j]->ESuperClusterOverP() - 1) >
|
| 75 |
TMath::Abs(e->ESuperClusterOverP() - 1)) {
|
| 76 |
CleanElTemp[j] = e;
|
| 77 |
}
|
| 78 |
break;
|
| 79 |
}
|
| 80 |
}
|
| 81 |
|
| 82 |
if (isElectronOverlap)
|
| 83 |
continue;
|
| 84 |
|
| 85 |
// if no overlaps then add to clean electrons
|
| 86 |
CleanElTemp.push_back(GoodElectrons->At(i));
|
| 87 |
}
|
| 88 |
|
| 89 |
// Fill the electron array with the contents of the vector:
|
| 90 |
ElectronOArr *CleanElectrons = new ElectronOArr;
|
| 91 |
CleanElectrons->SetName(fCleanElectronsName);
|
| 92 |
|
| 93 |
for (UInt_t j=0; j<CleanElTemp.size(); ++j)
|
| 94 |
CleanElectrons->Add(CleanElTemp[j]);
|
| 95 |
CleanElectrons->Sort();
|
| 96 |
|
| 97 |
// add to event for other modules to use
|
| 98 |
AddObjThisEvt(CleanElectrons);
|
| 99 |
}
|
