Modules

Here is a list of all modules:

Hadronization Classes	These classes are used for the Hadronization
Helicity classes	These classes are used to include spin correlation effects
Interfaces classes	These classes are used to interface to external tools, like matrix element generators, jet finder algorithms, etc
MatrixElement classes	These classes are used for the hard process generation
Matchbox classes	Hard process generation at NLO using Catani-Seymour subtraction and NLO matching
Models classes	These classes are used for specific models, like the Standard Model
PDF classes	These classes are used for particle density functions
Shower classes	These classes are used for the Showering
DipoleShower classes	Classes implementing the coherent dipole shower algorithm
Analysis classes	These classes are used to perform analysis of the events generated by Herwig
UnderlyingEvent classes	These classes are used for the underlying event
Utilities classes	These classes provide general utilities
Decay classes	These classes perform the decays
Particle Data class	Particle properties classses
Persistency classes [external]