/usr/include/fastjet/CMSIterativeConePlugin.hh is in libfastjetplugins-dev 3.0.6+dfsg-1.
This file is owned by root:root, with mode 0o644.
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// $Id: CMSIterativeConePlugin.hh 1508 2009-04-10 22:46:49Z soyez $
//
// Copyright (c) 2007-2011, Matteo Cacciari, Gavin P. 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
#ifndef __CMSITERATIVECONEPLUGIN_HH__
#define __CMSITERATIVECONEPLUGIN_HH__
#include "fastjet/JetDefinition.hh"
// questionable whether this should be in fastjet namespace or not...
FASTJET_BEGIN_NAMESPACE // defined in fastjet/internal/base.hh
// forward declaration to reduce includes
class PseudoJet;
//----------------------------------------------------------------------
//
/// @ingroup plugins
/// \class CMSIterativeConePlugin
/// Implementation of the CMS Iterative Cone (plugin for fastjet v2.4 upwards)
class CMSIterativeConePlugin : public JetDefinition::Plugin {
public:
/// Main constructor for the CMSIterativeCone Plugin class.
///
/// The arguments are
/// ConeRadius the radius of the cone
/// SeedThreshold a threshold for the seeds to iterate from
///
/// NOTE: to be more coherent with all other fastjet plugins,
/// we've put the radius before the seed threshold.
/// CMS does the opposite.
/// In this way, we also put a default value of 0 for the
/// seed threshold.
CMSIterativeConePlugin (double ConeRadius, double SeedThreshold=1.0) :
theConeRadius(ConeRadius), theSeedThreshold(SeedThreshold){}
/// copy constructor
CMSIterativeConePlugin (const CMSIterativeConePlugin & 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
/// here we return the R of the last alg in the list
virtual double R() const {return theConeRadius;}
/// get the seed threshold
virtual double seed_threshold() const {return theSeedThreshold;}
private:
double theConeRadius; ///< cone radius
double theSeedThreshold; ///< seed threshold
static bool _first_time;
/// print a banner for reference to the 3rd-party code
void _print_banner(std::ostream *ostr) const;
};
FASTJET_END_NAMESPACE // defined in fastjet/internal/base.hh
#endif // __CMSITERATIVECONEPLUGIN_HH__
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