PHG4IonGun.h

Go to the documentation of this file. Or view the newest version in sPHENIX GitHub for file PHG4IonGun.h

// Tell emacs that this is a C++ source
//  -*- C++ -*-.
#ifndef G4MAIN_PHG4IONGUN_H
#define G4MAIN_PHG4IONGUN_H

#include "PHG4ParticleGeneratorBase.h"

#include <cmath>
#include <string>

class PHG4Particle;
class PHCompositeNode;

class PHG4IonGun : public PHG4ParticleGeneratorBase
{
 public:
  PHG4IonGun(const std::string &name = "PHG4IONGUN");
  ~PHG4IonGun() override {}
  int process_event(PHCompositeNode *topNode) override;
  void SetA(const int a) { A = a; }
  void SetZ(const int z) { Z = z; }
  void SetCharge(const int c);
  void ExcitEnergy(const double e) { excitEnergy = e; }
  void SetMom(const double px, const double py, const double pz);
  void Print(const std::string &what = "ALL") const override;

 private:
  void UpdateParticle();
  PHG4Particle *ion = nullptr;
  int A = 0;
  int Z = 0;
  double mom[3] = {NAN, NAN, NAN};
  int ioncharge = 0;
  double excitEnergy = 0.;
};

#endif