Package hep.physics.event.generator.basic

Simple diagnostic generator for defining the initial kinematics of an event.

See:
Description

Class Summary

BasicDecayChannel	Simple decay channel representation.
BasicGenerator	Diagnostic multiparticle generator.
BasicGeneratorEvent	Basic implementation of hep.physics.event.generator.MCEvent interface.
BasicGeneratorParticle	Particle object to be used with diagnostic multiparticle generator.
BasicParticle	Basic implementation of hep.physics.particle.Particle interface.
CustomParticleType	Simple representation of a (possibly decaying) particle type.

Error Summary

BasicGeneratorError

Exception to be thrown by hep.physics.event.generator.basic classes.

Package hep.physics.event.generator.basic Description

Simple diagnostic generator for defining the initial kinematics of an event. Generated events can either be passed to other packages as hep.physics.event.HEPEvent objects, or written into a file in StdHep format. The file can later be used as an input for simulation. Pure Java code based on freehep Java libraries.

For more information and usage examples, see package description on Kansas State University site.

Features :

• Arbitrary mixture of input particle types can be entered. Initial kinematics of each particle can be set independently.

• Point of origin and initial momentum of each particle can be either given explicitly or randomized with user defined parameters (uniform distribution within a given range, Gaussian smearing, Gaussian smearing within a range).

• In addition to standard particle types, "exotic" particles can be defined by giving their mass, life time, and decay channels. Such particles are transported by the generator (magnetic field is not taken into account at the moment) and decayed, with the decay products being saved into the event as "final state" particles. The original particle is saved with "documentation" status.

• "Shadows" of various types can be requested for any particle. This allows, for example, to create a particle-antiparticle pair with randomized vertex and momentum, automatically ensuring that the particle and the antiparticle have the same origin and opposite momentum.