- Brief class description:
- The ThePEG::ClusterCollapser class can either be used as a preprocessor of a string fragmentation handler, or as a separatestep handler to collapse small colour singlet systems of partons into one or two particles.
See also ThePEG::ClusterCollapser
Name: FlavourGenerator
Type: Reference to objects of class
ThePEG::FlavourGenerator
- Description:
- The object used to combine quarks and diquarks into hadrons.
Name: ErrorLevel
Type: Switch
- Description:
- What to do if a cluster could not be collapsed, or if momentum could not be conserved.
Registered options:
- 0(
Nothing)
- Do nothing, clusters may not collapse or momentum may not be conserved.
- 2(
Warning)
- Report a warning, clusters may not collapse or momentum may not be conserved.
- 4(
EventError)
- Discard the whole event.
- 5(
RunError)
- End the run, printout the offending event.
- 7(
Abort)
- Abort and dump core.
Default value: 4
Name: pStrange
Type: Parameter
- Description:
- The relative probability to produce a s-sbar pair in a split as compared to a u-ubar or d-dbar pair.
Default value: 0.333333
Minimum value: 0
Maximum value: 2
Name: NTry2
Type: Integer parameter
- Description:
- The number of attempts to collapse a cluster into two particles, before it is collapsed into one particle.
Default value: 2
Minimum value: 0
Maximum value: 100
Name: EnergyCut
Type: Parameter
- Description:
- If the invariant mass of a cluster, minus the constituent masses of its partons is below this cut (in GeV), it will be collapsed into one or two particles.
Default value: 1
Minimum value: 0
Maximum value: 10
There may be interfaces inherited from the ThePEG::StepHandler class.
