Mods/src/ElectronCleaningMod.cc

// $Id: ElectronCleaningMod.cc,v 1.7 2008/12/10 21:19:25 loizides Exp $

#include "MitPhysics/Mods/interface/ElectronCleaningMod.h"
#include "MitCommon/MathTools/interface/MathUtils.h"
#include "MitPhysics/Init/interface/ModNames.h"

using namespace mithep;

ClassImp(mithep::ElectronCleaningMod)

//--------------------------------------------------------------------------------------------------
ElectronCleaningMod::ElectronCleaningMod(const char *name, const char *title) : 
  BaseMod(name,title),
  fGoodElectronsName(ModNames::gkGoodElectronsName),        
  fCleanMuonsName(ModNames::gkCleanMuonsName),        
  fCleanElectronsName(ModNames::gkCleanElectronsName)
{
  // Constructor.
}

//--------------------------------------------------------------------------------------------------
void ElectronCleaningMod::Process()
{
  // Process entries of the tree. 

  // get input collection
  const MuonCol     *CleanMuons    = GetObjThisEvt<MuonCol>(fCleanMuonsName);
  const ElectronCol *GoodElectrons = GetObjThisEvt<ElectronCol>(fGoodElectronsName);

  // Go through all electrons and remove electron overlaps with muons and duplicates.
  std::vector<const Electron*> CleanElTemp;
  for (UInt_t i=0; i<GoodElectrons->GetEntries(); ++i) {    
    const Electron *e = GoodElectrons->At(i);   

    FourVectorM mom(e->Mom());
    const Track *trtrack = e->TrackerTrk();

    // Check whether it overlaps with a good muon: If the muon and electron both have
    // tracker tracks then compare the tracks, otherwise
    Bool_t isMuonOverlap = kFALSE;
    UInt_t n = CleanMuons->GetEntries();
    for (UInt_t j=0; j<n; ++j) {
      
      if (trtrack && CleanMuons->At(j)->TrackerTrk()) {
        if (CleanMuons->At(j)->TrackerTrk() == trtrack) {
          isMuonOverlap = kTRUE;
          break;         
        }
      } else {      
        Double_t deltaR = MathUtils::DeltaR(CleanMuons->At(j)->Mom(), mom);     
        if (deltaR < 0.1) {
          isMuonOverlap = kTRUE;
          break;         
        }
      }
    }
    
    if (isMuonOverlap)
      continue;

    // Check whether it overlaps with another electron candidate:
    // Here I check whether we have two electron candidates with the same super cluster
    // or two electron candidates with the same track. At the end we also check deltaR
    // to be sure. If there is a duplicate we swap the old one with the new one if the new
    // one has E/P closer to 1.0.
    bool isElectronOverlap = kFALSE;
    for (UInt_t j=0; j<CleanElTemp.size(); ++j) {

      if (e->SCluster() == CleanElTemp[j]->SCluster() ||
          e->Trk() == CleanElTemp[j]->Trk())
        isElectronOverlap = kTRUE;

      if (!isElectronOverlap) {
        Double_t deltaR = MathUtils::DeltaR(CleanElTemp[j]->Mom(), mom);
        if (deltaR < 0.1)
          isElectronOverlap = kTRUE;        
      }

      if (isElectronOverlap) {
        if (TMath::Abs(CleanElTemp[j]->ESuperClusterOverP() - 1) > 
            TMath::Abs(e->ESuperClusterOverP() - 1)) {     
          CleanElTemp[j] = e;
        }        
        break;
      }
    }

    if (isElectronOverlap)
      continue;

    // if no overlaps then add to clean electrons
    CleanElTemp.push_back(GoodElectrons->At(i));   
  } 

  // Fill the electron array with the contents of the vector:
  ElectronOArr *CleanElectrons = new ElectronOArr;
  CleanElectrons->SetName(fCleanElectronsName);

  for (UInt_t j=0; j<CleanElTemp.size(); ++j) 
    CleanElectrons->Add(CleanElTemp[j]);
  CleanElectrons->Sort();
       
  // add to event for other modules to use
  AddObjThisEvt(CleanElectrons);  
}
Revision:	1.8
Committed:	Wed Feb 18 15:52:33 2009 UTC (16 years, 2 months ago) by loizides
Content type:	text/plain
Branch:	MAIN
CVS Tags:	Mit_009a, Mit_009, Mit_008, Mit_008pre2, Mit_008pre1
Changes since 1.7:	+2 -2 lines
Log Message:	Change to FourVectorM
#	User	Rev	Content
1	loizides	1.8	// $Id: ElectronCleaningMod.cc,v 1.7 2008/12/10 21:19:25 loizides Exp $
2	loizides	1.1
3			#include "MitPhysics/Mods/interface/ElectronCleaningMod.h"
4	loizides	1.3	#include "MitCommon/MathTools/interface/MathUtils.h"
5			#include "MitPhysics/Init/interface/ModNames.h"
6	loizides	1.1
7			using namespace mithep;
8
9			ClassImp(mithep::ElectronCleaningMod)
10
11			//--------------------------------------------------------------------------------------------------
12	loizides	1.4	ElectronCleaningMod::ElectronCleaningMod(const char name, const char title) :
13	loizides	1.1	BaseMod(name,title),
14	loizides	1.3	fGoodElectronsName(ModNames::gkGoodElectronsName),
15			fCleanMuonsName(ModNames::gkCleanMuonsName),
16	loizides	1.4	fCleanElectronsName(ModNames::gkCleanElectronsName)
17	loizides	1.1	{
18			// Constructor.
19			}
20
21			//--------------------------------------------------------------------------------------------------
22			void ElectronCleaningMod::Process()
23			{
24	loizides	1.4	// Process entries of the tree.
25	loizides	1.1
26	loizides	1.4	// get input collection
27	loizides	1.7	const MuonCol *CleanMuons = GetObjThisEvt<MuonCol>(fCleanMuonsName);
28			const ElectronCol *GoodElectrons = GetObjThisEvt<ElectronCol>(fGoodElectronsName);
29	loizides	1.1
30	loizides	1.4	// Go through all electrons and remove electron overlaps with muons and duplicates.
31			std::vector<const Electron*> CleanElTemp;
32	loizides	1.1	for (UInt_t i=0; i<GoodElectrons->GetEntries(); ++i) {
33	loizides	1.4	const Electron *e = GoodElectrons->At(i);
34	loizides	1.1
35	loizides	1.8	FourVectorM mom(e->Mom());
36	loizides	1.4	const Track *trtrack = e->TrackerTrk();
37
38			// Check whether it overlaps with a good muon: If the muon and electron both have
39			// tracker tracks then compare the tracks, otherwise
40			Bool_t isMuonOverlap = kFALSE;
41	loizides	1.7	UInt_t n = CleanMuons->GetEntries();
42			for (UInt_t j=0; j<n; ++j) {
43	loizides	1.4
44			if (trtrack && CleanMuons->At(j)->TrackerTrk()) {
45			if (CleanMuons->At(j)->TrackerTrk() == trtrack) {
46			isMuonOverlap = kTRUE;
47			break;
48			}
49	loizides	1.1	} else {
50	loizides	1.4	Double_t deltaR = MathUtils::DeltaR(CleanMuons->At(j)->Mom(), mom);
51	loizides	1.1	if (deltaR < 0.1) {
52	loizides	1.4	isMuonOverlap = kTRUE;
53	loizides	1.1	break;
54			}
55			}
56			}
57	loizides	1.4
58			if (isMuonOverlap)
59			continue;
60
61			// Check whether it overlaps with another electron candidate:
62			// Here I check whether we have two electron candidates with the same super cluster
63			// or two electron candidates with the same track. At the end we also check deltaR
64			// to be sure. If there is a duplicate we swap the old one with the new one if the new
65			// one has E/P closer to 1.0.
66			bool isElectronOverlap = kFALSE;
67			for (UInt_t j=0; j<CleanElTemp.size(); ++j) {
68
69			if (e->SCluster() == CleanElTemp[j]->SCluster() \|\|
70			e->Trk() == CleanElTemp[j]->Trk())
71			isElectronOverlap = kTRUE;
72
73			if (!isElectronOverlap) {
74			Double_t deltaR = MathUtils::DeltaR(CleanElTemp[j]->Mom(), mom);
75			if (deltaR < 0.1)
76	ceballos	1.5	isElectronOverlap = kTRUE;
77	loizides	1.4	}
78	loizides	1.1
79			if (isElectronOverlap) {
80	loizides	1.4	if (TMath::Abs(CleanElTemp[j]->ESuperClusterOverP() - 1) >
81			TMath::Abs(e->ESuperClusterOverP() - 1)) {
82			CleanElTemp[j] = e;
83	loizides	1.1	}
84			break;
85			}
86			}
87
88	loizides	1.4	if (isElectronOverlap)
89			continue;
90	loizides	1.1
91	loizides	1.4	// if no overlaps then add to clean electrons
92			CleanElTemp.push_back(GoodElectrons->At(i));
93			}
94	loizides	1.1
95	loizides	1.4	// Fill the electron array with the contents of the vector:
96			ElectronOArr *CleanElectrons = new ElectronOArr;
97			CleanElectrons->SetName(fCleanElectronsName);
98	loizides	1.1
99	loizides	1.4	for (UInt_t j=0; j<CleanElTemp.size(); ++j)
100			CleanElectrons->Add(CleanElTemp[j]);
101	loizides	1.6	CleanElectrons->Sort();
102	loizides	1.4
103			// add to event for other modules to use
104			AddObjThisEvt(CleanElectrons);
105	loizides	1.1	}