/usr/include/Rivet/Projections/MissingMomentum.hh is in librivet-dev 1.8.3-1.1.
This file is owned by root:root, with mode 0o644.
The actual contents of the file can be viewed below.
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 | // -*- C++ -*-
#ifndef RIVET_MissingMomentum_HH
#define RIVET_MissingMomentum_HH
#include "Rivet/Rivet.hh"
#include "Rivet/Projection.hh"
#include "Rivet/Projections/VisibleFinalState.hh"
#include "Rivet/Particle.hh"
#include "Rivet/Event.hh"
namespace Rivet {
/// @brief Calculate missing \f$ E \f$, \f$ E_\perp \f$ etc.
///
/// Project out the total visible energy vector, allowing missing
/// \f$ E \f$, \f$ E_\perp \f$ etc. to be calculated. Final state
/// visibility restrictions are automatic.
class MissingMomentum : public Projection {
public:
/// Default constructor with uncritical FS.
MissingMomentum()
{
setName("MissingMomentum");
FinalState fs;
addProjection(fs, "FS");
addProjection(VisibleFinalState(fs), "VisibleFS");
}
/// Constructor.
MissingMomentum(const FinalState& fs)
{
setName("MissingMomentum");
addProjection(fs, "FS");
addProjection(VisibleFinalState(fs), "VisibleFS");
}
/// Clone on the heap.
virtual const Projection* clone() const {
return new MissingMomentum(*this);
}
public:
/// The vector-summed visible four-momentum in the event.
const FourMomentum& visibleMomentum() const { return _momentum; }
/// The vector-summed (in)visible transverse energy in the event
const Vector3& vectorEt() const { return _vet; }
/// The scalar-summed visible transverse energy in the event.
double scalarEt() const { return _set; }
protected:
/// Apply the projection to the event.
void project(const Event& e);
/// Compare projections.
int compare(const Projection& p) const;
public:
/// Clear the projection results.
void clear();
private:
/// The total visible momentum
FourMomentum _momentum;
/// Scalar transverse energy
double _set;
/// Vector transverse energy
Vector3 _vet;
};
}
#endif
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