A plugin for FastJet (v3.0 or later) that provides an interface to the pre 1996 D0 version of Run-I cone algorithm. More...
#include <fastjet/D0RunIpre96ConePlugin.hh>
Public Member Functions | |
| D0RunIpre96ConePlugin (double CONErad_in, double JETmne_in, double SPLifr_in=_DEFAULT_SPLifr) | |
| The D0RunIpre96ConePlugin constructor, which sets the "free" parameters of the algorithm: More... | |
| 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... | |
 Public Member Functions inherited from fastjet::D0RunIBaseConePlugin | |
| D0RunIBaseConePlugin (double CONErad_in, double JETmne_in, double SPLifr_in=_DEFAULT_SPLifr) | |
| A D0RunIConePlugin constructor which sets the "free" parameters of the algorithm: More... | |
| double | CONErad () const |
| double | JETmne () const |
| double | SPLifr () const |
| double | TWOrad () const |
| bool | D0_Angle () const |
| bool | Increase_Delta_R () const |
| bool | Kill_Far_Clusters () const |
| bool | Jet_Et_Min_On_Iter () const |
| double | Far_Ratio () const |
| double | Eitem_Negdrop () const |
| double | Et_Min_Ratio () const |
| double | Thresh_Diff_Et () const |
| double | overlap_threshold () const |
| access the split_ratio() also by the name overlap_threshold() | |
| 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... | |
Additional Inherited Members | |
| Protected Member Functions inherited from fastjet::D0RunIBaseConePlugin | |
| template<typename HepEntityType > | |
| void | run_clustering_worker (ClusterSequence &) const |
| Protected Attributes inherited from fastjet::D0RunIBaseConePlugin | |
| double | _CONErad |
| double | _JETmne |
| double | _SPLifr |
| double | _TWOrad |
| bool | _D0_Angle |
| bool | _Increase_Delta_R |
| bool | _Kill_Far_Clusters |
| bool | _Jet_Et_Min_On_Iter |
| double | _Far_Ratio |
| double | _Eitem_Negdrop |
| double | _Et_Min_Ratio |
| double | _Thresh_Diff_Et |
| Static Protected Attributes inherited from fastjet::D0RunIBaseConePlugin | |
| static const double | _DEFAULT_SPLifr = 0.5 |
| static const double | _DEFAULT_TWOrad = 0. |
| static const bool | _DEFAULT_D0_Angle = false |
| static const bool | _DEFAULT_Increase_Delta_R = true |
| static const bool | _DEFAULT_Kill_Far_Clusters = true |
| static const bool | _DEFAULT_Jet_Et_Min_On_Iter = true |
| static const double | _DEFAULT_Far_Ratio = 0.5 |
| static const double | _DEFAULT_Eitem_Negdrop = -1.0 |
| static const double | _DEFAULT_Et_Min_Ratio = 0.5 |
| static const double | _DEFAULT_Thresh_Diff_Et = 0.01 |
Detailed Description
A plugin for FastJet (v3.0 or later) that provides an interface to the pre 1996 D0 version of Run-I cone algorithm.
The D0 code has been obtained from Lars Sonnenschein's web-space http://www-d0.fnal.gov/~sonne/D0RunIcone.tgz
The version of the D0 Run I 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.
The difference between this algorithm and the post-1996 version relates to the way the final jet momenta are calculated. Details are to be found in FERMILAB-PUB-97-242-E.
Definition at line 63 of file D0RunIpre96ConePlugin.hh.
Constructor & Destructor Documentation
◆ D0RunIpre96ConePlugin()
|
inline |
The D0RunIpre96ConePlugin constructor, which sets the "free" parameters of the algorithm:
- Parameters
-
CONErad is the cone radius JETmne is a minimum ET requirement on every iteration (jet dropped if Et < JETmne * Et_min_ratio ). The value that has been used by D0 for JETmne: 8 GeV (and Et_min_ratio is 0.5) SPlifr is the shared Et fraction splitting threshold, and a value of 0.5 was usually used by D0
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 82 of file D0RunIpre96ConePlugin.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::D0RunIBaseConePlugin.
Definition at line 167 of file D0RunIBaseConePlugin.cc.
The documentation for this class was generated from the following files:
- plugins/D0RunICone/fastjet/D0RunIpre96ConePlugin.hh
- plugins/D0RunICone/D0RunIBaseConePlugin.cc
