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PHG4IonGun.h
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1 // Tell emacs that this is a C++ source
2 // -*- C++ -*-.
3 #ifndef G4MAIN_PHG4IONGUN_H
4 #define G4MAIN_PHG4IONGUN_H
5 
7 
8 #include <cmath>
9 #include <string>
10 
11 class PHG4Particle;
12 class PHCompositeNode;
13 
15 {
16  public:
17  PHG4IonGun(const std::string &name = "PHG4IONGUN");
18  ~PHG4IonGun() override {}
19  int process_event(PHCompositeNode *topNode) override;
20  void SetA(const int a) { A = a; }
21  void SetZ(const int z) { Z = z; }
22  void SetCharge(const int c);
23  void ExcitEnergy(const double e) { excitEnergy = e; }
24  void SetMom(const double px, const double py, const double pz);
25  void Print(const std::string &what = "ALL") const override;
26 
27  private:
28  void UpdateParticle();
29  PHG4Particle *ion = nullptr;
30  int A = 0;
31  int Z = 0;
32  double mom[3] = {NAN, NAN, NAN};
33  int ioncharge = 0;
34  double excitEnergy = 0.;
35 };
36 
37 #endif