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

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.