SampleXsection.h

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/*
   Copyright (C) 2002-2020 CERN for the benefit of the ATLAS collaboration
 */
 
#ifndef SAMPLEXSECTION_H
#define SAMPLEXSECTION_H
 
#include <map>
#include <string>
#include <unordered_map>
 
class SampleXsection {
public:
  enum showering {
    pythia=0,
    herwig=1,
    sherpa=2,
    pythia8=4,
    herwigpp=5,
    sherpa21=6,
    amcatnlopythia8=7,
    herwigpp713=8,
    sherpa228=9,
    sherpa2210=10,
    herwigpp721=11,
    sherpa2212=12,
    amcatnloherwig7=13,
    unknown=14
  };
 
  inline SampleXsection() : m_Xsects() {}
  inline SampleXsection(const SampleXsection& xs) : m_Xsects(xs.m_Xsects) {}
  inline ~SampleXsection() {}
 
  SampleXsection& operator = (const SampleXsection& xs);
 
  bool readFromFile(const char* fName);
  void setSample(const int dsid, const double xSect, const double kFact, const showering shower, const double xSectDw,
                 const double xSectUp);
 
  double getRawXsection(const int dsid) const;
  double getKfactor(const int dsid) const;
  double getXsection(const int dsid) const;
  double getXsectionUp(const int dsid) const;
  double getXsectionDown(const int dsid) const;
  std::pair<double, double> getXsectionDownUp(const int dsid) const;
  showering getShowering(const int dsid) const;
  std::string getShoweringString(const int dsid) const;
  int getShoweringIndex(const int dsid) const;
  void setTranslator(const std::unordered_map<std::string, std::string>& map) {m_translator = map;}
 
private:
  std::map<int, std::pair<double, double> > m_Xsects;
  std::map<int, std::pair<double, double> > m_Uncert;
  std::map<int, showering > m_Showering;
  std::unordered_map<std::string, std::string> m_translator;
 
  showering applyTranslation(const showering shower) const;
  std::string showerToString(const showering shower) const;
  showering stringToShower(const std::string& name) const;
};
 
#endif // SAMPLEXSECTION_H