FastJet  3.3.4
Public Member Functions | List of all members
fastjet::ATLASConePlugin Class Reference

#include <fastjet/ATLASConePlugin.hh>

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Public Member Functions

 ATLASConePlugin (double radius, double seedPt_in=2.0, double f_in=0.5)
 Main constructor for the ATLASCone Plugin class. More...
 
 ATLASConePlugin (const ATLASConePlugin &plugin)
 copy constructor
 
virtual std::string description () const
 return a textual description of the jet-definition implemented in this plugin
 
virtual void run_clustering (ClusterSequence &) const
 given a ClusterSequence that has been filled up with initial particles, the following function should fill up the rest of the ClusterSequence, using the following member functions of ClusterSequence: More...
 
virtual double R () const
 the plugin mechanism's standard way of accessing the jet radius here we return the R of the last alg in the list
 
double seedPt () const
 seed threshold
 
double f () const
 split-merge overlap threshold
 
- Public Member Functions inherited from fastjet::JetDefinition::Plugin
virtual bool supports_ghosted_passive_areas () const
 return true if there is specific support for the measurement of passive areas, in the sense that areas determined from all particles below the ghost separation scale will be a passive area. More...
 
virtual void set_ghost_separation_scale (double scale) const
 set the ghost separation scale for passive area determinations in future runs (strictly speaking that makes the routine a non const, so related internal info must be stored as a mutable)
 
virtual double ghost_separation_scale () const
 
virtual bool exclusive_sequence_meaningful () const
 if this returns false then a warning will be given whenever the user requests "exclusive" jets from the cluster sequence
 
virtual bool is_spherical () const
 returns true if the plugin implements an algorithm intended for use on a spherical geometry (e.g. More...
 
virtual ~Plugin ()
 a destructor to be replaced if necessary in derived classes...
 

Detailed Description

Implementation of the ATLAS Cone (plugin for fastjet v2.4 upwards)

Definition at line 51 of file ATLASConePlugin.hh.

Constructor & Destructor Documentation

◆ ATLASConePlugin()

fastjet::ATLASConePlugin::ATLASConePlugin ( double  radius,
double  seedPt_in = 2.0,
double  f_in = 0.5 
)
inline

Main constructor for the ATLASCone Plugin class.

Apparently the default parameters in the ATLAS software are the ones used here. SpartyJet uses a radius of 0.7, a seed threshold of 1 GeV and an overlap threshold of 0.75 For the ATLAS SW defaults, see http://atlas-sw.cern.ch/cgi-bin/viewcvs-atlas.cgi/groups/JetRoutines/SpartyJet/atlas/ in the JetdoneFinderTools.cxx (rev1.1) and JetSplitMergeTool.cxx (rev1.1) For SpartyJet, see atlas/ConeFinderTool.h

Finally, to agree with FastJet standards, we do not specify a default R, that in the ATLAS code is 0.7

Definition at line 65 of file ATLASConePlugin.hh.

Member Function Documentation

◆ run_clustering()

void fastjet::ATLASConePlugin::run_clustering ( ClusterSequence ) const
virtual

given a ClusterSequence that has been filled up with initial particles, the following function should fill up the rest of the ClusterSequence, using the following member functions of ClusterSequence:

  • plugin_do_ij_recombination(...)
  • plugin_do_iB_recombination(...)

Implements fastjet::JetDefinition::Plugin.

Definition at line 58 of file ATLASConePlugin.cc.


The documentation for this class was generated from the following files: