Rivet/Projections/NeutralFinalState.hh

0001 // -*- C++ -*-
0002 #ifndef RIVET_NeutralFinalState_HH
0003 #define RIVET_NeutralFinalState_HH
0004
0005 #include "Rivet/Projections/FinalState.hh"
0006
0007 namespace Rivet {
0008
0009
0010   /// @brief Project only neutral final state particles.
0011   class NeutralFinalState : public FinalState {
0012   public:
0013
0014     /// @name Constructors
0015     /// @{
0016
0017     /// Construction from another FinalState
0018     NeutralFinalState(const FinalState& fsp, double etmin=0*GeV)
0019       : _Etmin(etmin)
0020     {
0021       setName("NeutralFinalState");
0022       declare(fsp, "FS");
0023     }
0024
0025     /// Construction using Cuts object
0026     NeutralFinalState(const Cut& c=Cuts::open()) : _Etmin(0.0*GeV) {
0027       setName("NeutralFinalState");
0028       declare(FinalState(c), "FS");
0029     }
0030
0031     /// Clone on the heap.
0032     RIVET_DEFAULT_PROJ_CLONE(NeutralFinalState);
0033
0034     /// @}
0035
0036     /// Import to avoid warnings about overload-hiding
0037     using Projection::operator =;
0038
0039
0040     /// Apply the projection on the supplied event.
0041     void project(const Event& e);
0042
0043     /// Compare projections.
0044     CmpState compare(const Projection& p) const;
0045
0046
0047   protected:
0048
0049     /// The minimum allowed transverse energy.
0050     /// @todo Remove in favour of a Cut
0051     double _Etmin;
0052
0053   };
0054
0055
0056 }
0057
0058
0059 #endif