SimG4ParticleSmearFormula.h

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#ifndef SIMG4FAST_G4PARTICLESMEARFORMULA_H
#define SIMG4FAST_G4PARTICLESMEARFORMULA_H
 
// Gaudi
#include "GaudiKernel/AlgTool.h"
#include "GaudiKernel/RndmGenerators.h"
class IRndmGenSvc;
class IRndmGen;
 
// ROOT
#include "TFormula.h"
 
// FCCSW
#include "SimG4Interface/ISimG4ParticleSmearTool.h"
 
class SimG4ParticleSmearFormula : public AlgTool, virtual public ISimG4ParticleSmearTool {
public:
  explicit SimG4ParticleSmearFormula(const std::string& type, const std::string& name, const IInterface* parent);
  virtual ~SimG4ParticleSmearFormula();
 
  virtual StatusCode initialize() final;
  virtual StatusCode finalize() final;
 
  virtual StatusCode smearMomentum(CLHEP::Hep3Vector& aMom, int aPdg = 0) final;
 
  inline virtual StatusCode checkConditions(double, double, double) const final { return StatusCode::SUCCESS; }
 
private:
  TFormula m_resolutionMomentum;
  SmartIF<IRndmGenSvc> m_randSvc;
  IRndmGen* m_gauss;
  Gaudi::Property<std::string> m_resolutionMomentumStr{
      this, "resolutionMomentum", "",
      "string defining a TFormula representing resolution momentum-dependent for the smearing"};
};
 
#endif /* SIMG4FAST_G4PARTICLESMEARSIMPLE_H */