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D0RunIConePlugin.hh
1 #ifndef __D0RUNICONEPLUGIN_HH__
2 #define __D0RUNICONEPLUGIN_HH__
3 
4 //FJSTARTHEADER
5 // $Id: D0RunIConePlugin.hh 1778 2010-10-25 10:02:58Z soyez $
6 //
7 // Copyright (c) 2009-2014, Matteo Cacciari, Gavin P. Salam and Gregory Soyez
8 //
9 //----------------------------------------------------------------------
10 // This file is part of FastJet.
11 //
12 // FastJet is free software; you can redistribute it and/or modify
13 // it under the terms of the GNU General Public License as published by
14 // the Free Software Foundation; either version 2 of the License, or
15 // (at your option) any later version.
16 //
17 // The algorithms that underlie FastJet have required considerable
18 // development. They are described in the original FastJet paper,
19 // hep-ph/0512210 and in the manual, arXiv:1111.6097. If you use
20 // FastJet as part of work towards a scientific publication, please
21 // quote the version you use and include a citation to the manual and
22 // optionally also to hep-ph/0512210.
23 //
24 // FastJet is distributed in the hope that it will be useful,
25 // but WITHOUT ANY WARRANTY; without even the implied warranty of
26 // MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
27 // GNU General Public License for more details.
28 //
29 // You should have received a copy of the GNU General Public License
30 // along with FastJet. If not, see <http://www.gnu.org/licenses/>.
31 //----------------------------------------------------------------------
32 //FJENDHEADER
33 
34 #include "fastjet/internal/base.hh" // namespace macros (include explicitly to help Doxygen)
35 #include "fastjet/D0RunIBaseConePlugin.hh"
36 
37 // questionable whether this should be in fastjet namespace or not...
38 
39 FASTJET_BEGIN_NAMESPACE // defined in fastjet/internal/base.hh
40 
41 //----------------------------------------------------------------------
42 //
43 /// @ingroup plugins
44 /// \class D0RunIConePlugin
45 ///
46 /// A plugin for FastJet (v3.0 or later) that provides an interface to
47 /// the D0 version of Run-I cone algorithm
48 ///
49 /// The D0 code has been obtained from Lars Sonnenschein's web-space
50 /// http://www-d0.fnal.gov/~sonne/D0RunIcone.tgz
51 ///
52 /// The version of the D0 Run I code distributed
53 /// here has been modified by the FastJet authors, so as to provide
54 /// access to the contents of the jets (as is necessary for the
55 /// plugin). This does not modify the results of the clustering.
56 ///
57 /// The difference between this algorithm and the post-1996 version
58 /// relates to the way the final jet momenta are calculated. Details
59 /// are to be found in FERMILAB-PUB-97-242-E.
60 //
61 //----------------------------------------------------------------------
63 public:
64  /// The D0RunIConePlugin constructor, which sets the "free" parameters of the
65  /// algorithm:
66  ///
67  /// \param CONErad is the cone radius
68  ///
69  /// \param JETmne is a minimum ET requirement on every iteration
70  /// (jet dropped if Et < JETmne * Et_min_ratio ).
71  /// The value that has been used by D0 for JETmne: 8 GeV
72  /// (and Et_min_ratio is 0.5)
73  ///
74  /// \param SPlifr is the shared Et fraction splitting threshold, and
75  /// a value of 0.5 was usually used by D0
76  ///
77  /// The remaining parameters of the algorithm are not to be modified if the algorithm
78  /// is to correspond to the one actually used by D0.
79  ///
80  D0RunIConePlugin (double CONErad_in, double JETmne_in , double SPLifr_in = _DEFAULT_SPLifr)
81  : D0RunIBaseConePlugin(CONErad_in, JETmne_in , SPLifr_in){}
82 
83  // the things that are required by base class
84  virtual std::string description () const;
85 
86  // the part that really does the clustering
87  virtual void run_clustering(ClusterSequence &) const;
88 
89 private:
90  static bool _first_time;
91 
92  /// print a banner for reference to the 3rd-party code
93  void _print_banner(std::ostream *ostr) const;
94 };
95 
96 
97 
98 FASTJET_END_NAMESPACE // defined in fastjet/internal/base.hh
99 
100 #endif // __D0RUNICONEPLUGIN_HH__
deals with clustering
D0RunIBaseConePlugin is base class for a plugin for FastJet (v3.0 or later) that provides an interfac...
D0RunIConePlugin(double CONErad_in, double JETmne_in, double SPLifr_in=_DEFAULT_SPLifr)
The D0RunIConePlugin constructor, which sets the "free" parameters of the algorithm: ...
A plugin for FastJet (v3.0 or later) that provides an interface to the D0 version of Run-I cone algor...