Rivet  1.8.3
MissingMomentum.hh
1 // -*- C++ -*-
2 #ifndef RIVET_MissingMomentum_HH
3 #define RIVET_MissingMomentum_HH
4 
5 #include "Rivet/Rivet.hh"
6 #include "Rivet/Projection.hh"
7 #include "Rivet/Projections/VisibleFinalState.hh"
8 #include "Rivet/Particle.hh"
9 #include "Rivet/Event.hh"
10 
11 namespace Rivet {
12 
13 
19  class MissingMomentum : public Projection {
20  public:
21 
24  {
25  setName("MissingMomentum");
26  FinalState fs;
27  addProjection(fs, "FS");
28  addProjection(VisibleFinalState(fs), "VisibleFS");
29  }
30 
31 
34  {
35  setName("MissingMomentum");
36  addProjection(fs, "FS");
37  addProjection(VisibleFinalState(fs), "VisibleFS");
38  }
39 
40 
42  virtual const Projection* clone() const {
43  return new MissingMomentum(*this);
44  }
45 
46 
47  public:
48 
50  const FourMomentum& visibleMomentum() const { return _momentum; }
51 
53  const Vector3& vectorEt() const { return _vet; }
54 
56  double scalarEt() const { return _set; }
57 
58 
59  protected:
60 
62  void project(const Event& e);
63 
65  int compare(const Projection& p) const;
66 
67 
68  public:
69 
71  void clear();
72 
73 
74  private:
75 
77  FourMomentum _momentum;
78 
80  double _set;
81 
83  Vector3 _vet;
84 
85  };
86 
87 
88 }
89 
90 #endif
void setName(const std::string &name)
Used by derived classes to set their name.
Definition: Projection.hh:120
const Vector3 & vectorEt() const
The vector-summed (in)visible transverse energy in the event.
Definition: MissingMomentum.hh:53
Definition: MC_JetAnalysis.hh:9
virtual const Projection * clone() const
Clone on the heap.
Definition: MissingMomentum.hh:42
MissingMomentum()
Default constructor with uncritical FS.
Definition: MissingMomentum.hh:23
MissingMomentum(const FinalState &fs)
Constructor.
Definition: MissingMomentum.hh:33
Definition: Event.hh:22
double scalarEt() const
The scalar-summed visible transverse energy in the event.
Definition: MissingMomentum.hh:56
void clear()
Clear the projection results.
Definition: MissingMomentum.cc:14
Calculate missing , etc.
Definition: MissingMomentum.hh:19
int compare(const Projection &p) const
Compare projections.
Definition: MissingMomentum.cc:9
Project out all final-state particles in an event. Probably the most important projection in Rivet! ...
Definition: FinalState.hh:14
const PROJ & addProjection(const PROJ &proj, const std::string &name)
Definition: ProjectionApplier.hh:113
void project(const Event &e)
Apply the projection to the event.
Definition: MissingMomentum.cc:21
Base class for all Rivet projections.
Definition: Projection.hh:28
Three-dimensional specialisation of Vector.
Definition: Vector3.hh:26
Specialized version of the FourVector with momentum/energy functionality.
Definition: Vector4.hh:324
const FourMomentum & visibleMomentum() const
The vector-summed visible four-momentum in the event.
Definition: MissingMomentum.hh:50
Final state modifier excluding particles which are not experimentally visible.
Definition: VisibleFinalState.hh:16