e1hg_systematics.h

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/*
  Copyright (C) 2002-2024 CERN for the benefit of the ATLAS collaboration
*/
 
#ifndef E1HG_SYSTEMATICS_H
#define E1HG_SYSTEMATICS_H
#include "TArrayD.h"
#include "TFile.h"
#include "TH1.h"
 
class e1hg_systematics {
 
 public:
  e1hg_systematics(const std::string& filename);
  ~e1hg_systematics();
 
  double getAlpha(int particle_type, double energy, double eta,
                  bool interpolate = false) const;
 
 private:
  // histograms to store parameters
  TH1D* m_helec[8];
  TH1D* m_hphot[8];
  TH1D* m_hphot2[8];
  TFile* m_file0;
  const TArrayD* m_etBins;
};
 
#endif