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FastJet 3.0.2
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FastJet 3.0.2
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D0RunIBaseConePlugin is base class for a plugin for FastJet (v3.0 or later) that provides an interface to the D0 version of Run-I cone algorithm. More...
#include <fastjet/D0RunIBaseConePlugin.hh>
Public Member Functions | |
| D0RunIBaseConePlugin (double CONErad_in, double JETmne_in, double SPLifr_in=_DEFAULT_SPLifr) | |
| A D0RunIConePlugin constructor which sets the "free" parameters of the algorithm: | |
| 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 std::string | description () const =0 |
| return a textual description of the jet-definition implemented in this plugin | |
| virtual void | run_clustering (ClusterSequence &) const =0 |
| 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: | |
| virtual double | R () const |
| the plugin mechanism's standard way of accessing the jet radius | |
Protected Member Functions | |
| template<typename HepEntityType > | |
| void | run_clustering_worker (ClusterSequence &) const |
Protected Attributes | |
| 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 | |
| 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 |
D0RunIBaseConePlugin is base class for a plugin for FastJet (v3.0 or later) that provides an interface to the D0 version of Run-I cone algorithm.
Note that this base class is purely virtual and thus needs to be overloaded. In practice this means that you should use one of D0RunIConePlugin or D0RunIpre96ConePlugin.
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.
Definition at line 59 of file D0RunIBaseConePlugin.hh.
| fastjet::D0RunIBaseConePlugin::D0RunIBaseConePlugin | ( | double | CONErad_in, |
| double | JETmne_in, | ||
| double | SPLifr_in = _DEFAULT_SPLifr |
||
| ) | [inline] |
A D0RunIConePlugin constructor which sets the "free" parameters of the algorithm:
| 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 76 of file D0RunIBaseConePlugin.hh.
| virtual void fastjet::D0RunIBaseConePlugin::run_clustering | ( | ClusterSequence & | ) | const [pure 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:
Implements fastjet::JetDefinition::Plugin.
Implemented in fastjet::D0RunIConePlugin, and fastjet::D0RunIpre96ConePlugin.
1.7.4
