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