Mods/src/ElectronCleaningMod.cc

// $Id: ElectronCleaningMod.cc,v 1.9 2009/06/15 15:00:21 loizides Exp $

#include "MitPhysics/Mods/interface/ElectronCleaningMod.h"
#include "MitCommon/MathTools/interface/MathUtils.h"
#include "MitAna/DataTree/interface/ElectronCol.h"
#include "MitAna/DataTree/interface/MuonCol.h"
#include "MitAna/DataTree/interface/Track.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) {
      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:	1.10
Committed:	Mon Jun 28 21:08:19 2010 UTC (14 years, 10 months ago) by ceballos
Content type:	text/plain
Branch:	MAIN
CVS Tags:	Mit_020a, Mit_020, Mit_020pre1, Mit_018, Mit_017, Mit_017pre3, Mit_017pre2, Mit_017pre1, Mit_016, Mit_015b, Mit_015a, Mit_015, Mit_014e, Mit_014d, Mit_014c
Changes since 1.9:	+5 -13 lines
Log Message:	change electron cleaning
#	User	Rev	Content
1	ceballos	1.10	// $Id: ElectronCleaningMod.cc,v 1.9 2009/06/15 15:00:21 loizides Exp $
2	loizides	1.1
3			#include "MitPhysics/Mods/interface/ElectronCleaningMod.h"
4	loizides	1.3	#include "MitCommon/MathTools/interface/MathUtils.h"
5	loizides	1.9	#include "MitAna/DataTree/interface/ElectronCol.h"
6			#include "MitAna/DataTree/interface/MuonCol.h"
7			#include "MitAna/DataTree/interface/Track.h"
8	loizides	1.3	#include "MitPhysics/Init/interface/ModNames.h"
9	loizides	1.1
10			using namespace mithep;
11
12			ClassImp(mithep::ElectronCleaningMod)
13
14			//--------------------------------------------------------------------------------------------------
15	loizides	1.4	ElectronCleaningMod::ElectronCleaningMod(const char name, const char title) :
16	loizides	1.1	BaseMod(name,title),
17	loizides	1.3	fGoodElectronsName(ModNames::gkGoodElectronsName),
18			fCleanMuonsName(ModNames::gkCleanMuonsName),
19	loizides	1.4	fCleanElectronsName(ModNames::gkCleanElectronsName)
20	loizides	1.1	{
21			// Constructor.
22			}
23
24			//--------------------------------------------------------------------------------------------------
25			void ElectronCleaningMod::Process()
26			{
27	loizides	1.4	// Process entries of the tree.
28	loizides	1.1
29	loizides	1.4	// get input collection
30	loizides	1.7	const MuonCol *CleanMuons = GetObjThisEvt<MuonCol>(fCleanMuonsName);
31			const ElectronCol *GoodElectrons = GetObjThisEvt<ElectronCol>(fGoodElectronsName);
32	loizides	1.1
33	loizides	1.4	// Go through all electrons and remove electron overlaps with muons and duplicates.
34			std::vector<const Electron*> CleanElTemp;
35	loizides	1.1	for (UInt_t i=0; i<GoodElectrons->GetEntries(); ++i) {
36	loizides	1.4	const Electron *e = GoodElectrons->At(i);
37	loizides	1.1
38	loizides	1.8	FourVectorM mom(e->Mom());
39	loizides	1.4	const Track *trtrack = e->TrackerTrk();
40
41			// Check whether it overlaps with a good muon: If the muon and electron both have
42			// tracker tracks then compare the tracks, otherwise
43			Bool_t isMuonOverlap = kFALSE;
44	loizides	1.7	UInt_t n = CleanMuons->GetEntries();
45			for (UInt_t j=0; j<n; ++j) {
46	ceballos	1.10	Double_t deltaR = MathUtils::DeltaR(CleanMuons->At(j)->Mom(), mom);
47			if (deltaR < 0.1) {
48			isMuonOverlap = kTRUE;
49			break;
50	loizides	1.1	}
51			}
52	loizides	1.4
53			if (isMuonOverlap)
54			continue;
55
56			// Check whether it overlaps with another electron candidate:
57			// Here I check whether we have two electron candidates with the same super cluster
58			// or two electron candidates with the same track. At the end we also check deltaR
59			// to be sure. If there is a duplicate we swap the old one with the new one if the new
60			// one has E/P closer to 1.0.
61			bool isElectronOverlap = kFALSE;
62			for (UInt_t j=0; j<CleanElTemp.size(); ++j) {
63
64			if (e->SCluster() == CleanElTemp[j]->SCluster() \|\|
65			e->Trk() == CleanElTemp[j]->Trk())
66			isElectronOverlap = kTRUE;
67
68			if (!isElectronOverlap) {
69			Double_t deltaR = MathUtils::DeltaR(CleanElTemp[j]->Mom(), mom);
70			if (deltaR < 0.1)
71	ceballos	1.5	isElectronOverlap = kTRUE;
72	loizides	1.4	}
73	loizides	1.1
74			if (isElectronOverlap) {
75	loizides	1.4	if (TMath::Abs(CleanElTemp[j]->ESuperClusterOverP() - 1) >
76			TMath::Abs(e->ESuperClusterOverP() - 1)) {
77			CleanElTemp[j] = e;
78	loizides	1.1	}
79			break;
80			}
81			}
82
83	loizides	1.4	if (isElectronOverlap)
84			continue;
85	loizides	1.1
86	loizides	1.4	// if no overlaps then add to clean electrons
87			CleanElTemp.push_back(GoodElectrons->At(i));
88			}
89	loizides	1.1
90	loizides	1.4	// Fill the electron array with the contents of the vector:
91			ElectronOArr *CleanElectrons = new ElectronOArr;
92			CleanElectrons->SetName(fCleanElectronsName);
93	loizides	1.1
94	loizides	1.4	for (UInt_t j=0; j<CleanElTemp.size(); ++j)
95			CleanElectrons->Add(CleanElTemp[j]);
96	loizides	1.6	CleanElectrons->Sort();
97	loizides	1.4
98			// add to event for other modules to use
99			AddObjThisEvt(CleanElectrons);
100	loizides	1.1	}