Rivet: /Users/chrisg/software/rivet/include/Rivet/Projections/PxConePlugin.hh Source File

| Rivet 3.1.9

PxConePlugin.hh
1//FJSTARTHEADER
2// $Id: PxConePlugin.hh 3433 2014-07-23 08:17:03Z salam $
3//
4// Copyright (c) 2005-2014, Matteo Cacciari, Gavin P. Salam and Gregory Soyez
5//
6//----------------------------------------------------------------------
7// This file is part of FastJet.
8//
9// FastJet is free software; you can redistribute it and/or modify
10// it under the terms of the GNU General Public License as published by
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15// development. They are described in the original FastJet paper,
16// hep-ph/0512210 and in the manual, arXiv:1111.6097. If you use
17// FastJet as part of work towards a scientific publication, please
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26// You should have received a copy of the GNU General Public License
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29//FJENDHEADER
30
31#ifndef __PXCONEPLUGIN_HH__
32#define __PXCONEPLUGIN_HH__
33
34#include "fastjet/JetDefinition.hh"
35
36// questionable whether this should be in fastjet namespace or not...
37
38//FASTJET_BEGIN_NAMESPACE // defined in fastjet/internal/base.hh
39namespace Rivet {
40//----------------------------------------------------------------------
41//
66//
67//----------------------------------------------------------------------
68class PxConePlugin : public fastjet::JetDefinition::Plugin {
69public:
70
92 PxConePlugin (double cone_radius_in ,
93 double min_jet_energy_in = 5.0 ,
94 double overlap_threshold_in = 0.5,
95 bool E_scheme_jets_in = false) :
96 _cone_radius (cone_radius_in ),
97 _min_jet_energy (min_jet_energy_in ),
98 _overlap_threshold (overlap_threshold_in),
99 _E_scheme_jets (E_scheme_jets_in ) {}
100
101
102 // some functions to return info about parameters ----------------
103
105 double cone_radius () const {return _cone_radius ;}
106
109 double min_jet_energy () const {return _min_jet_energy ;}
110
112 double overlap_threshold () const {return _overlap_threshold ;}
113
119 bool E_scheme_jets() const {return _E_scheme_jets ;}
120
121
122 // the things that are required by base class
123 virtual std::string description () const;
124 virtual void run_clustering(fastjet::ClusterSequence &) const;
126 virtual double R() const {return cone_radius();}
127
128private:
129
130 double _cone_radius ;
131 double _min_jet_energy ;
132 double _overlap_threshold ;
133
134 bool _E_scheme_jets;
135
136 static bool _first_time;
137
139 void _print_banner(std::ostream *ostr) const;
140};
141
142
143
144// actual physical parameters:
145//
146// coner
147// epsilon
148// ovlim
149
150 void pxcone_
151 (
152 int mode , // 1=>e+e-, 2=>hadron-hadron
153 int ntrak , // Number of particles
154 int itkdm , // First dimension of PTRAK array:
155 const double * ptrak , // Array of particle 4-momenta (Px,Py,Pz,E)
156 double coner , // Cone size (half angle) in radians
157 double epslon , // Minimum Jet energy (GeV)
158 double ovlim , // Maximum fraction of overlap energy in a jet
159 int mxjet , // Maximum possible number of jets
160 int & njet , // Number of jets found
161 double * pjet, // 5-vectors of jets
162 int * ipass, // Particle k belongs to jet number IPASS(k)-1
163 // IPASS = -1 if not assosciated to a jet
164 int * ijmul, // Jet i contains IJMUL[i] particles
165 int * ierr // = 0 if all is OK ; = -1 otherwise
166 );
167
168//FASTJET_END_NAMESPACE // defined in fastjet/internal/base.hh
169}
170
171#endif
172
Rivet
Definition MC_Cent_pPb.hh:10