Chi2LJets.h

Go to the documentation of this file.

/*
   Copyright (C) 2002-2017 CERN for the benefit of the ATLAS collaboration
 */
 
#ifndef CHI2LJETS_H_
#define CHI2LJETS_H_
 
#include "TopEventSelectionTools/EventSelectorBase.h"
 
#include "TLorentzVector.h"
 
class TMinuit;
 
namespace top {
  class Event;
 
  class FitInfo: public TObject {
  public:
    double hadronic_w_mass;
 
    double hadronic_t_mass;
 
    double neutrino_px;
 
    double neutrino_py;
 
    TLorentzVector lepton;
 
    TLorentzVector leptonic_b;
  };
 
  class Chi2LJets: public EventSelectorBase {
  public:
    Chi2LJets();
    virtual ~Chi2LJets();
 
    virtual bool apply(const top::Event&) const override;
 
    std::string name() const override {return "RECO:CHI2LJETS";}
  private:
    TMinuit* min;
 
    mutable FitInfo params;
 
//so the fcn function can see them
  public:
    static const double input_topmass;
 
    static const double input_wmass;
 
    static const double input_topsigma;
 
    static const double input_wsigma;
  };
}
 
void fcn(int& npar, double* deriv, double& result, double par[], int flag);
 
#endif