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1 -------------------------------------------------------------------
2
3 =========================================================
4 Geant4 - an Object-Oriented Toolkit for Simulation in HEP
5 =========================================================
6
7 HepMCEx02
8 ---------
9
10 This example demonstrates how to interface primary particles in Geant4
11 with various event generators via the HepMC Monte Carlo event interface.
12 This is another example having the same generator action as HepMCEx01,
13 but much simpler user control.
14
15 1. Primary Generator
16
17 H02PrimaryGeneratorAction has HepMCG4Interface as the generator.
18 There are two types of generators provided as samples. One generator reads
19 primary information from a HepMC Ascii file (data/example_MyPythia.dat).
20 The other one generates primaries directly invoking PYTHIA routines
21 in every event.
22
23 2. Geometry
24
25 A simplified collider-type geometry, which consists of
26 - endcap calorimeter (a set of tubes filled with lead),
27 - barrel calorimeter (tube filled with lead),
28 - barrel muon detector (8 sets of plates filled with Ar),
29 - endcap muon detecror, (a set of tubes filled with Ar) and
30 - uniform magnetic field along the z axis of 3 Tesla at the
31 central region.
32
33 3. Physics List
34
35 FTFP_BERT predefined physics list
36
37 4. User actions
38
39 All particles except muons are killed in the calorimeter section.
40
41 5. Installation
42
43 See HepMC/README how to build this example.
44
45 6. Execution
46
47 % HepMCEx02 hepmc_pygen.in
48