Gabriele Cosmo
49 lines
2.0 KiB
Plaintext
49 lines
2.0 KiB
Plaintext
//$Id$
|
|
|
|
///\file "parallel/ParN04/.README.N04"
|
|
///\brief Example N04 (in ParN04) README page
|
|
|
|
/*! \page ExampleN04InParN04 Example N04 in ParN04
|
|
|
|
ParN04 has a simplified collider detector geometry.
|
|
This example demonstrates the following features.
|
|
[ Read \link ExampleParN02 Example ParN02 \endlink for a description
|
|
of how to run it in parallel. ]
|
|
|
|
\section ExampleN04InParN04_s1 PYTHIA primary events.
|
|
|
|
ExN04PrimaryGeneratorAction has G4HEPEvtInterface as the generator.
|
|
G4HEPEvtInterface accesses to "pythia_event.data", which contains three
|
|
events of Higgs generation produced by PYTHIA. "pythia_main.f" is an
|
|
example FORTRAN code of PYTHIA for generating this event sample.
|
|
|
|
\section ExampleN04InParN04_s2 Readout geometry
|
|
|
|
ExN04DetectorConstruction defines a simplified collider detecor
|
|
geometry, tracker made of cylindrical tubes, calorimeter made of
|
|
cylindrical tubes, and muon trackers made of planes.
|
|
Cylindrical calorimeter is made of tubes of lead and scintirator
|
|
without cut in phi nor z direction. Energy deposition in scintirator
|
|
is accumurated by ExN04CalorimeterSD sensitive detector, which has
|
|
a readout geometry to find the phi-z cell.
|
|
|
|
\section ExampleN04InParN04_s3 Full set of "ordinary" physics processes
|
|
|
|
ExN04PhysicsList defines almost all of leptons and hadrons which
|
|
Geant4 has dedicated classes for. Also almost all physics processes
|
|
Geant4 has are defined.
|
|
|
|
\section ExampleN04InParN04_s4 Event filtering by the stacking mechanism.
|
|
|
|
Higgs events in "pythia_event.data" have two lepton pairs produced
|
|
by the Higgs decay via Z0. At the first stage of each event, only the
|
|
primary muons are tracked without tracking secondaries. then the number
|
|
of hits on the muon trackers are examined. At the next stage, only
|
|
the primary charged particles are tracked only inside the barrel
|
|
tracking area and the isolation of the primary muons are examined.
|
|
At the third stage, all particles in the RoI (Region of Interest) along
|
|
the isolated muons are tracked. All these examinations are applied in
|
|
ExN04StackingAction.
|
|
|
|
*/
|