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25 //
26 //
27 /// \file eventgenerator/pythia/decayer6/pythia6_decayer.cc
28 /// \brief Main program of the pythia6Decayer example
29
30 #include "DetectorConstruction.hh"
31 #include "GunPrimaryGeneratorAction.hh"
32 #include "P6DExtDecayerPhysics.hh"
33 #include "QGSP_BERT.hh"
34
35 #include "G4RunManagerFactory.hh"
36 #include "G4SystemOfUnits.hh"
37 #include "G4ThreeVector.hh"
38 #include "G4UIExecutive.hh"
39 #include "G4UImanager.hh"
40 #include "G4VisExecutive.hh"
41 #include "Randomize.hh"
42
43 int main(int argc, char** argv)
44 {
45 // Detect interactive mode (if no arguments) and define UI session
46 //
47 G4UIExecutive* ui = 0;
48 if (argc == 1) {
49 ui = new G4UIExecutive(argc, argv);
50 }
51
52 // Choose the Random engine
53 //
54 G4Random::setTheEngine(new CLHEP::RanecuEngine);
55
56 // Construct a serial run manager
57 //
58 auto* runManager = G4RunManagerFactory::CreateRunManager(G4RunManagerType::SerialOnly);
59
60 // Set mandatory initialization classes
61 //
62 runManager->SetUserInitialization(new Common::DetectorConstruction);
63
64 //
65 G4VModularPhysicsList* physicsList = new QGSP_BERT;
66 physicsList->RegisterPhysics(new P6DExtDecayerPhysics());
67 runManager->SetUserInitialization(physicsList);
68
69 // Set user action classes
70 //
71 runManager->SetUserAction(new Common::GunPrimaryGeneratorAction("B-", 50. * MeV));
72 // B- meson has not defined decay in Geant4
73
74 // Initialize visualization
75 //
76 G4VisManager* visManager = new G4VisExecutive;
77 // G4VisExecutive can take a verbosity argument - see /vis/verbose guidance.
78 // G4VisManager* visManager = new G4VisExecutive("Quiet");
79 visManager->Initialize();
80
81 // Get the pointer to the User Interface manager
82 G4UImanager* UImanager = G4UImanager::GetUIpointer();
83
84 // Process macro or start UI session
85 //
86 if (!ui) {
87 // batch mode
88 G4String command = "/control/execute ";
89 G4String fileName = argv[1];
90 UImanager->ApplyCommand(command + fileName);
91 }
92 else {
93 // interactive mode
94 UImanager->ApplyCommand("/control/execute init_vis.mac");
95 ui->SessionStart();
96 delete ui;
97 }
98
99 // Job termination
100 // Free the store: user actions, physics_list and detector_description are
101 // owned and deleted by the run manager, so they should not
102 // be deleted in the main() program !
103 delete visManager;
104 delete runManager;
105 }
106