Implementation of the D0 Run II Cone (plugin for fastjet v2.1 upwards) More...
#include <fastjet/D0RunIIConePlugin.hh>
Public Member Functions | |
| D0RunIIConePlugin (double cone_radius_in, double min_jet_Et_in, double split_ratio_in=_DEFAULT_split_ratio) | |
| A D0RunIIConePlugin constructor which sets the "free" parameters of the algorithm: More... | |
| double | cone_radius () const |
| double | min_jet_Et () const |
| double | split_ratio () const |
| double | far_ratio () const |
| double | Et_min_ratio () const |
| bool | kill_duplicate () const |
| double | duplicate_dR () const |
| double | duplicate_dPT () const |
| double | search_factor () const |
| double | pT_min_leading_protojet () const |
| double | pT_min_second_protojet () const |
| int | merge_max () const |
| double | pT_min_nomerge () const |
| double | overlap_threshold () const |
| access the split_ratio() also by the name overlap_threshold() | |
| 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 | |
 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 D0 Run II Cone (plugin for fastjet v2.1 upwards)
D0RunIIConePlugin is a plugin for fastjet (v2.1 upwards) that provides an interface to the D0 version of Run-II iterative cone algorithm with midpoint seeds (also known as the Iterative Legacy Cone Algorithm, ILCA).
The D0 code has been taken from Lars Sonnenschein's web-space http://www-d0.fnal.gov/~sonne/D0RunIIcone.tgz
The version of the D0 Run II code distributed here has been modified by the FastJet authors, so as to provide access to the contents of the jets (as is necessary for the plugin). This does not modify the results of the clustering.
Definition at line 61 of file D0RunIIConePlugin.hh.
Constructor & Destructor Documentation
◆ D0RunIIConePlugin()
|
inline |
A D0RunIIConePlugin constructor which sets the "free" parameters of the algorithm:
- the cone_radius has the usual meaning
- the min_jet_Et causes cones to be discarded at if at any iteration they have pt < Et_min_ratio * min_jet_Et. Two values have been used by D0 for min_jet_Et: 8 GeV in earlier Run II publicatinos, 6 GeV in later publications
- split_ratio is equivalent to the overlap threshold during the split/merge step. Default: 0.5.
The remaining parameters of the algorithm are not to be modified if the algorithm is to correspond to the one actually used by D0.
Definition at line 81 of file D0RunIIConePlugin.hh.
Member Function Documentation
◆ run_clustering()
|
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 72 of file D0RunIIConePlugin.cc.
The documentation for this class was generated from the following files:
- plugins/D0RunIICone/fastjet/D0RunIIConePlugin.hh
- plugins/D0RunIICone/D0RunIIConePlugin.cc
