| 1 | $Id: README,v 1.1 2002/05/28 14:20:36 murakami Exp $
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| 2 | -------------------------------------------------------------------
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| 3 |
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| 4 | =========================================================
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| 5 | Geant4 - an Object-Oriented Toolkit for Simulation in HEP
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| 6 | =========================================================
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| 7 |
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| 8 | HepMCEx02
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| 9 | ---------
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| 10 |
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| 11 | This example demonstrates how to interface primary particles in Geant4
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| 12 | with various event generators via the HepMC Monte Carlo event interface.
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| 13 | This is another example having the same generator action as HepMCEx01,
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| 14 | but much simpler user control.
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| 15 |
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| 16 | 1. Primary Generator
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| 17 |
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| 18 | H02PrimaryGeneratorAction has HepMCG4Interface as the generator.
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| 19 | There are two types of generators provided as samples. One generator reads
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| 20 | primary information from a HepMC Ascii file (data/example_MyPythia.dat).
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| 21 | The other one generates primaries directly invoking PYTHIA routines
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| 22 | in every event.
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| 23 |
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| 24 | 2. Geometry
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| 25 |
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| 26 | A simplified collider-type geometry, which consists of
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| 27 | - endcap calorimeter (a set of tubes filled with lead),
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| 28 | - barrel calorimeter (tube filled with lead),
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| 29 | - barrel muon detector (8 sets of plates filled with Ar),
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| 30 | - endcap muon detecror, (a set of tubes filled with Ar) and
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| 31 | - uniform magnetic field along the z axis of 3 Tesla at the
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| 32 | central region.
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| 33 |
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| 34 | 3. Physics List
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| 35 |
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| 36 | Full set of "ordinary" physics processes, which is the same one as
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| 37 | ExN04PhysicsList.
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| 38 |
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| 39 | 4. User actions
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| 40 |
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| 41 | All particles except muons are killed in the calorimeter section.
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| 42 |
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