GEANT4 is still under development, and our group took part in the precise comparision of
simulated and experimental beam test data especially for hadronic physics at G4
environment.
In the next two figures 1 and 2 some particular the results from our analyses are shown.
In Košice now we have full present in stand-alone mode the ATLAS
software, which is based on OO-object oriented software.
We take participation in Monte-Carlo simulation of HEC beam set-up, see Fig 3,
in the cluster reconstruction in LAr using standard
Athena
ATLAS tool and in this time we try to use last GEANT4 version for the missing
ET/jets physics
in HEC, e.g. in Fig. 4 the comparisions among GEANT3.21, GEANT4 and beam tests data
have been shown.
On the Fig. 5 the results from combined EMC/HEC/FCAL tests together with Monte-Carlo
predictions - GEANT3.21 and GEANT4 -used LHEP and QGSP hadronic processes are shown.
Into generator PYTHIA6.2 has been putted new process with the
production of two top quarks and we began the analyze with two top
production including background calculation.
Figure 1:
The energy resolution of pions in HEC
Figure 2:
The energy dependence of pion for various HEC layers.
Figure 3:
The beam test set-up
Figure 4:
The electron resolution for impact point J
Figure 5:
Results from combined EMC/HEC/FCAL tests together with Monte-Carlo
predictions (GEANT3.21 and GEANT4 -used LHEP and QGSP hadronic processes.)