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0002
0003 =========================================================
0004 Geant4 - an Object-Oriented Toolkit for Simulation in HEP
0005 =========================================================
0006
0007 HepMCEx02
0008 ---------
0009
0010 This example demonstrates how to interface primary particles in Geant4
0011 with various event generators via the HepMC Monte Carlo event interface.
0012 This is another example having the same generator action as HepMCEx01,
0013 but much simpler user control.
0014
0015 1. Primary Generator
0016
0017 H02PrimaryGeneratorAction has HepMCG4Interface as the generator.
0018 There are two types of generators provided as samples. One generator reads
0019 primary information from a HepMC Ascii file (data/example_MyPythia.dat).
0020 The other one generates primaries directly invoking PYTHIA routines
0021 in every event.
0022
0023 2. Geometry
0024
0025 A simplified collider-type geometry, which consists of
0026 - endcap calorimeter (a set of tubes filled with lead),
0027 - barrel calorimeter (tube filled with lead),
0028 - barrel muon detector (8 sets of plates filled with Ar),
0029 - endcap muon detecror, (a set of tubes filled with Ar) and
0030 - uniform magnetic field along the z axis of 3 Tesla at the
0031 central region.
0032
0033 3. Physics List
0034
0035 FTFP_BERT predefined physics list
0036
0037 4. User actions
0038
0039 All particles except muons are killed in the calorimeter section.
0040
0041 5. Installation
0042
0043 See HepMC/README how to build this example.
0044
0045 6. Execution
0046
0047 % HepMCEx02 hepmc_pygen.in
0048
