/usr/include/Rivet/Projections/CentralEtHCM.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 | // -*- C++ -*-
#ifndef RIVET_CentralEtHCM_HH
#define RIVET_CentralEtHCM_HH
#include "Rivet/Particle.hh"
#include "Rivet/Event.hh"
#include "Rivet/Projections/DISFinalState.hh"
namespace Rivet {
/// @brief Summed \f$ E_\perp \f$ of central particles in HCM system.
///
/// Sum up \f$ E_\perp \f$ of all particles in the hadronic final state in the
/// central rapidity bin of the HCM system.
class CentralEtHCM : public Projection {
public:
/// The default constructor. Must specify a FinalStateHCM projection
/// object which is guaranteed to live throughout the run.
CentralEtHCM(const DISFinalState& fs)
{
setName("CentralEtHCM");
addProjection(fs, "FS");
}
/// Clone on the heap.
virtual const Projection* clone() const {
return new CentralEtHCM(*this);
}
protected:
/// Apply the projection on to the Event.
void project(const Event& e);
/// Compare with other projections
int compare(const Projection& p) const {
return mkNamedPCmp(p, "FS");
}
public:
/// The sum of the Et in the central rapidity bin.
double sumEt() const { return _sumet; }
private:
/// The sum of the Et in the central rapidity bin.
double _sumet;
};
}
#endif
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