/usr/include/fastjet/JadePlugin.hh is in libfastjetplugins-dev 3.0.6+dfsg-3.
This file is owned by root:root, with mode 0o644.
The actual contents of the file can be viewed below.
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 101 102 103 104 | #ifndef __JADEPLUGIN_HH__
#define __JADEPLUGIN_HH__
//STARTHEADER
// $Id: JadePlugin.hh 2577 2011-09-13 15:11:38Z salam $
//
// Copyright (c) 2009, Matteo Cacciari, Gavin Salam and Gregory Soyez
//
//----------------------------------------------------------------------
// This file is part of FastJet.
//
// FastJet is free software; you can redistribute it and/or modify
// it under the terms of the GNU General Public License as published by
// the Free Software Foundation; either version 2 of the License, or
// (at your option) any later version.
//
// The algorithms that underlie FastJet have required considerable
// development and are described in hep-ph/0512210. If you use
// FastJet as part of work towards a scientific publication, please
// include a citation to the FastJet paper.
//
// FastJet is distributed in the hope that it will be useful,
// but WITHOUT ANY WARRANTY; without even the implied warranty of
// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
// GNU General Public License for more details.
//
// You should have received a copy of the GNU General Public License
// along with FastJet. If not, see <http://www.gnu.org/licenses/>.
//----------------------------------------------------------------------
//ENDHEADER
#include "fastjet/JetDefinition.hh"
FASTJET_BEGIN_NAMESPACE // defined in fastjet/internal/base.hh
// forward declaration to reduce includes
class ClusterSequence;
//----------------------------------------------------------------------
//
/// @ingroup plugins
/// \class JadePlugin
/// Implementation of the e+e- Jade algorithm (plugin for fastjet v2.4 upwards)
///
/// JadePlugin is a plugin for fastjet (v2.4 upwards)
/// It implements the JADE algorithm, which is an e+e- sequential
/// recombination algorithm with interparticle distance
///
/// dij = 2 E_i E_j (1 - cos theta_ij)
///
/// or equivalently
///
/// yij = dij/E_{vis}^2
///
/// This corresponds to the distance measured used in
///
/// "Experimental Investigation of the Energy Dependence of the Strong Coupling Strength."
/// JADE Collaboration (S. Bethke et al.)
/// Phys.Lett.B213:235,1988
///
/// The JADE article carries out particle recombinations in the
/// E-scheme (4-vector recombination), which is the default procedure for this
/// plugin.
///
/// NOTE: other widely used schemes include E0, P, P0; however they also
/// involve modifications to the distance measure. Be sure of
/// what you're doing before running a JADE type algorithm.
///
/// To access the jets with a given ycut value (clustering stops once
/// all yij > ycut), use
///
/// vector<PseudoJet> jets = cluster_sequence.exclusive_jets_ycut(ycut);
///
/// and related routines.
class JadePlugin : public JetDefinition::Plugin {
public:
/// Main constructor for the Jade Plugin class.
JadePlugin (){}
/// copy constructor
JadePlugin (const JadePlugin & plugin) {
*this = plugin;
}
// the things that are required by base class
virtual std::string description () const;
virtual void run_clustering(ClusterSequence &) const;
/// the plugin mechanism's standard way of accessing the jet radius.
/// This must be set to return something sensible, even if R
/// does not make sense for this algorithm!
virtual double R() const {return 1.0;}
/// avoid the warning whenever the user requests "exclusive" jets
/// from the cluster sequence
virtual bool exclusive_sequence_meaningful() const {return true;}
private:
};
FASTJET_END_NAMESPACE // defined in fastjet/internal/base.hh
#endif // __JADEPLUGIN_HH__
|