| 1 |
tboccali |
1.1 |
#ifndef RecoJets_JetAlgorithms_CATopJetAlgorithm_h
|
| 2 |
|
|
#define RecoJets_JetAlgorithms_CATopJetAlgorithm_h
|
| 3 |
|
|
|
| 4 |
|
|
|
| 5 |
|
|
|
| 6 |
|
|
/* *********************************************************
|
| 7 |
|
|
* \class CATopJetAlgorithm
|
| 8 |
|
|
* Jet producer to produce top jets using the C-A algorithm to break
|
| 9 |
|
|
* jets into subjets as described here:
|
| 10 |
|
|
* "Top-tagging: A Method for Identifying Boosted Hadronic Tops"
|
| 11 |
|
|
* David E. Kaplan, Keith Rehermann, Matthew D. Schwartz, Brock Tweedie
|
| 12 |
|
|
* arXiv:0806.0848v1 [hep-ph]
|
| 13 |
|
|
*
|
| 14 |
|
|
************************************************************/
|
| 15 |
|
|
|
| 16 |
|
|
#include <vector>
|
| 17 |
|
|
#include <list>
|
| 18 |
|
|
#include <functional>
|
| 19 |
|
|
#include <TMath.h>
|
| 20 |
|
|
#include <iostream>
|
| 21 |
|
|
|
| 22 |
|
|
#include "DataFormats/Candidate/interface/Candidate.h"
|
| 23 |
|
|
#include "DataFormats/CaloTowers/interface/CaloTower.h"
|
| 24 |
|
|
#include "DataFormats/CaloTowers/interface/CaloTowerFwd.h"
|
| 25 |
|
|
#include "DataFormats/JetReco/interface/CaloJet.h"
|
| 26 |
|
|
#include "DataFormats/JetReco/interface/CaloJetCollection.h"
|
| 27 |
|
|
#include "DataFormats/JetReco/interface/BasicJet.h"
|
| 28 |
|
|
#include "DataFormats/JetReco/interface/BasicJetCollection.h"
|
| 29 |
|
|
#include "DataFormats/Math/interface/deltaR.h"
|
| 30 |
|
|
#include "RecoJets/JetAlgorithms/interface/JetAlgoHelper.h"
|
| 31 |
|
|
#include "RecoJets/JetAlgorithms/interface/CompoundPseudoJet.h"
|
| 32 |
|
|
#include "DataFormats/Candidate/interface/LeafCandidate.h"
|
| 33 |
|
|
#include "FWCore/Framework/interface/Event.h"
|
| 34 |
|
|
|
| 35 |
|
|
#include "RecoJets/JetAlgorithms/interface/CompoundPseudoJet.h"
|
| 36 |
|
|
|
| 37 |
|
|
#include <fastjet/JetDefinition.hh>
|
| 38 |
|
|
#include <fastjet/PseudoJet.hh>
|
| 39 |
|
|
#include <fastjet/ClusterSequence.hh>
|
| 40 |
|
|
|
| 41 |
|
|
|
| 42 |
|
|
class CATopJetAlgorithm{
|
| 43 |
|
|
public:
|
| 44 |
|
|
/** Constructor
|
| 45 |
|
|
*/
|
| 46 |
|
|
CATopJetAlgorithm(edm::InputTag mSrc,
|
| 47 |
|
|
bool verbose,
|
| 48 |
|
|
int algorithm,
|
| 49 |
|
|
int useAdjacency,
|
| 50 |
|
|
double centralEtaCut,
|
| 51 |
|
|
double ptMin,
|
| 52 |
|
|
const std::vector<double> & sumEtBins,
|
| 53 |
|
|
const std::vector<double> & rBins,
|
| 54 |
|
|
const std::vector<double> & ptFracBins,
|
| 55 |
|
|
const std::vector<double> & deltarBins,
|
| 56 |
|
|
const std::vector<double> & nCellBins,
|
| 57 |
|
|
double seedThreshold,
|
| 58 |
|
|
bool useMaxTower,
|
| 59 |
|
|
double sumEtEtaCut,
|
| 60 |
|
|
double etFrac) :
|
| 61 |
|
|
mSrc_ (mSrc ),
|
| 62 |
|
|
verbose_ (verbose ),
|
| 63 |
|
|
algorithm_ (algorithm ),
|
| 64 |
|
|
useAdjacency_ (useAdjacency ),
|
| 65 |
|
|
centralEtaCut_ (centralEtaCut ),
|
| 66 |
|
|
ptMin_ (ptMin ),
|
| 67 |
|
|
sumEtBins_ (sumEtBins ),
|
| 68 |
|
|
rBins_ (rBins ),
|
| 69 |
|
|
ptFracBins_ (ptFracBins ),
|
| 70 |
|
|
deltarBins_ (deltarBins ),
|
| 71 |
|
|
nCellBins_ (nCellBins ),
|
| 72 |
|
|
seedThreshold_ (seedThreshold ),
|
| 73 |
|
|
useMaxTower_ (useMaxTower ),
|
| 74 |
|
|
sumEtEtaCut_ (sumEtEtaCut ),
|
| 75 |
|
|
etFrac_ (etFrac )
|
| 76 |
|
|
{ }
|
| 77 |
|
|
|
| 78 |
|
|
/// Find the ProtoJets from the collection of input Candidates.
|
| 79 |
|
|
void run( const std::vector<fastjet::PseudoJet> & cell_particles,
|
| 80 |
|
|
std::vector<CompoundPseudoJet> & hardjetsOutput,
|
| 81 |
|
|
edm::EventSetup const & c
|
| 82 |
|
|
);
|
| 83 |
|
|
|
| 84 |
|
|
private:
|
| 85 |
|
|
|
| 86 |
|
|
edm::InputTag mSrc_; //<! calo tower input source
|
| 87 |
|
|
bool verbose_; //<!
|
| 88 |
|
|
int algorithm_; //<! 0 = KT, 1 = CA, 2 = anti-KT
|
| 89 |
|
|
int useAdjacency_; //<! choose adjacency requirement:
|
| 90 |
|
|
//<! 0 = no adjacency
|
| 91 |
|
|
//<! 1 = deltar adjacency
|
| 92 |
|
|
//<! 2 = modified adjacency
|
| 93 |
|
|
//<! 3 = calotower neirest neigbor based adjacency (untested)
|
| 94 |
|
|
double centralEtaCut_; //<! eta for defining "central" jets
|
| 95 |
|
|
double ptMin_; //<! lower pt cut on which jets to reco
|
| 96 |
|
|
std::vector<double> sumEtBins_; //<! sumEt bins over which cuts vary. vector={bin 0 lower bound, bin 1 lower bound, ...}
|
| 97 |
|
|
std::vector<double> rBins_; //<! Jet distance paramter R. R values depend on sumEt bins.
|
| 98 |
|
|
std::vector<double> ptFracBins_; //<! deltap = fraction of full jet pt for a subjet to be consider "hard".
|
| 99 |
|
|
std::vector<double> deltarBins_; //<! Applicable only if useAdjacency=1. deltar adjacency values for each sumEtBin
|
| 100 |
|
|
std::vector<double> nCellBins_; //<! Applicable only if useAdjacency=3. number of cells apart for two subjets to be considered "independent"
|
| 101 |
|
|
// NOT USED:
|
| 102 |
|
|
double seedThreshold_; //<! calo tower seed threshold - NOT USED
|
| 103 |
|
|
bool useMaxTower_; //<! use max tower for jet adjacency criterion, false is to use the centroid - NOT USED
|
| 104 |
|
|
double sumEtEtaCut_; //<! eta for event SumEt - NOT USED
|
| 105 |
|
|
double etFrac_; //<! fraction of event sumEt / 2 for a jet to be considered "hard" - NOT USED
|
| 106 |
|
|
std::string jetType_; //<! CaloJets or GenJets - NOT USED
|
| 107 |
|
|
|
| 108 |
|
|
|
| 109 |
|
|
// Decide if the two jets are in adjacent cells
|
| 110 |
|
|
bool adjacentCells(const fastjet::PseudoJet & jet1, const fastjet::PseudoJet & jet2,
|
| 111 |
|
|
const std::vector<fastjet::PseudoJet> & cell_particles,
|
| 112 |
|
|
const fastjet::ClusterSequence & theClusterSequence,
|
| 113 |
|
|
double nCellMin ) const;
|
| 114 |
|
|
|
| 115 |
|
|
|
| 116 |
|
|
// Attempt to break up one "hard" jet into two "soft" jets
|
| 117 |
|
|
|
| 118 |
|
|
bool decomposeJet(const fastjet::PseudoJet & theJet,
|
| 119 |
|
|
const fastjet::ClusterSequence & theClusterSequence,
|
| 120 |
|
|
const std::vector<fastjet::PseudoJet> & cell_particles,
|
| 121 |
|
|
double ptHard, double nCellMin, double deltarcut,
|
| 122 |
|
|
fastjet::PseudoJet & ja, fastjet::PseudoJet & jb,
|
| 123 |
|
|
std::vector<fastjet::PseudoJet> & leftovers) const;
|
| 124 |
|
|
|
| 125 |
|
|
};
|
| 126 |
|
|
|
| 127 |
|
|
|
| 128 |
|
|
|
| 129 |
|
|
#endif
|
