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Kinematics.h
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1 
10 #ifndef INCLUDE_EICSMEAR_ERHIC_KINEMATICS_H_
11 #define INCLUDE_EICSMEAR_ERHIC_KINEMATICS_H_
12 
13 #include <list>
14 #include <vector>
15 
16 #include <Rtypes.h>
17 #include <TLorentzVector.h>
18 
19 #include "eicsmear/erhic/ParticleMC.h"
20 #include "eicsmear/erhic/ParticleIdentifier.h"
21 #include "eicsmear/erhic/VirtualParticle.h"
22 
23 namespace erhic {
24 
25 class EventDis;
26 class VirtualParticle;
27 
31 struct DisKinematics : public TObject {
35  DisKinematics();
39  DisKinematics(double x, double y, double nu, double Q2, double W2);
40  Double32_t mX;
41  Double32_t mQ2;
42  Double32_t mW2;
43  Double32_t mNu;
44  Double32_t mY;
45 
46  static bool BoundaryWarning;
47 
48  ClassDef(erhic::DisKinematics, 1)
49 };
50 
54 class KinematicsComputer {
55  public:
56  virtual ~KinematicsComputer() { }
57  virtual TObject* Calculate() = 0;
58  ClassDef(erhic::KinematicsComputer, 1)
59 };
60 
66 class LeptonKinematicsComputer : public KinematicsComputer {
67  public:
68  virtual ~LeptonKinematicsComputer() { }
72  explicit LeptonKinematicsComputer(const EventDis&);
73  virtual DisKinematics* Calculate();
74 
75  protected:
76  std::vector<const VirtualParticle*> mBeams;
77 
78  ClassDef(erhic::LeptonKinematicsComputer, 1)
79 };
80 
88 class JacquetBlondelComputer : public KinematicsComputer {
89  public:
90  virtual ~JacquetBlondelComputer();
100  explicit JacquetBlondelComputer(const EventDis&);
101  virtual DisKinematics* Calculate();
102 
103  protected:
104  virtual Double_t ComputeY() const;
105  virtual Double_t ComputeQSquared() const;
106  virtual Double_t ComputeX() const;
108  const EventDis& mEvent;
110  std::vector<const VirtualParticle*> mParticles;
111 
112  ClassDef(erhic::JacquetBlondelComputer, 1)
113 };
114 
119 class DoubleAngleComputer : public KinematicsComputer {
120  public:
121  virtual ~DoubleAngleComputer();
131  explicit DoubleAngleComputer(const EventDis&);
132  virtual DisKinematics* Calculate();
133 
134  protected:
135  const EventDis& mEvent;
139  virtual Double_t ComputeQuarkAngle() const;
140  virtual Double_t ComputeY() const;
141  virtual Double_t ComputeQSquared() const;
142  virtual Double_t ComputeX() const;
145  mutable Bool_t mHasChanged;
147  mutable Double_t mAngle;
148  std::vector<const VirtualParticle*> mParticles;
149 
150  ClassDef(erhic::DoubleAngleComputer, 1)
151 };
152 
153 } // namespace erhic
154 
155 #endif // INCLUDE_EICSMEAR_ERHIC_KINEMATICS_H_