2#ifndef RIVET_GammaGammaKinematics_HH
3#define RIVET_GammaGammaKinematics_HH
5#include "Rivet/Particle.hh"
6#include "Rivet/Event.hh"
7#include "Rivet/Projection.hh"
8#include "Rivet/Projections/GammaGammaLeptons.hh"
9#include "Rivet/Projections/Beam.hh"
20 const std::map<std::string,std::string> & opts =
21 std::map<std::string,std::string>())
22 : _theQ2(make_pair(-1.0,-1.0)), _theW2(-1.0)
24 setName(
"GammaGammaKinematics");
35 using Projection::operator =;
50 pair<double,double>
Q2()
const {
return _theQ2; }
53 double W2()
const {
return _theW2; }
70 pair<double,double> _theQ2;
Project out the incoming beams.
Definition Beam.hh:129
Representation of a HepMC event, and enabler of Projection caching.
Definition Event.hh:22
Get the gamma gamma kinematic variables and relevant boosts for an event.
Definition GammaGammaKinematics.hh:15
DEFAULT_RIVET_PROJ_CLONE(GammaGammaKinematics)
Clone on the heap.
const ParticlePair & scatteredLeptons() const
The scattered GammaGamma lepton.
Definition GammaGammaKinematics.hh:61
const ParticlePair & beamLeptons() const
The incoming lepton beam particle.
Definition GammaGammaKinematics.hh:56
virtual void project(const Event &e)
Perform the projection operation on the supplied event.
virtual CmpState compare(const Projection &p) const
Compare with other projections.
pair< double, double > Q2() const
The .
Definition GammaGammaKinematics.hh:50
double W2() const
The .
Definition GammaGammaKinematics.hh:53
GammaGammaKinematics(const GammaGammaLeptons &lepton=GammaGammaLeptons(), const std::map< std::string, std::string > &opts=std::map< std::string, std::string >())
The default constructor.
Definition GammaGammaKinematics.hh:19
Get the incoming and outgoing leptons in a gamma gamma collision event in e+e-.
Definition GammaGammaLeptons.hh:18
const PROJ & declare(const PROJ &proj, const std::string &name)
Register a contained projection (user-facing version)
Definition ProjectionApplier.hh:170
Base class for all Rivet projections.
Definition Projection.hh:29
void setName(const std::string &name)
Used by derived classes to set their name.
Definition Projection.hh:142
double p(const ParticleBase &p)
Unbound function access to p.
Definition ParticleBaseUtils.hh:684
Definition MC_Cent_pPb.hh:10
std::pair< Particle, Particle > ParticlePair
Typedef for a pair of Particle objects.
Definition Particle.hh:42