Speaker
Dr
Andrea Fontana
(INFN-Pavia)
Description
The concept of Virtual Monte Carlo allows to use different Monte Carlo
programs to simulate particle physics detectors without changing the
geometry definition and the detector response simulation.
In this context, to study the reconstruction capabilities of a detector,
the availability of a tool to extrapolate the track parameters and their
associated errors due to magnetic field, straggling in energy loss and
Coulomb multiple scattering plays a central role: GEANE is an old program
written in Fortran 15 years ago that performs this task through dense
materials and that is still succesfully used by many modern
experiments in its native form. Among its features there are the
capability to read directly the geometry and the magnetic field map
from the simulation and to use different track representations.
In this work we have "rediscovered" GEANE in the context of the Virtual Monte
Carlo: the talk will show how GEANE has been integrated in the FairROOT
framework, firmly based on the VMC, by keeping the old features in the
new ROOT geometry modeler. Moreover new features have been added to GEANE
to allow its use also for low density materials, i.e. for gaseous detectors,
and preliminary results will be shown and discussed.
The tool is now used by the PANDA and CBM collaborations at GSI as the first
step for the global reconstruction algorithms, based on a Kalman filter which
is currently under development.
Summary
The use of GEANE as track follower for the Virtual Monte Carlo with the
ROOT geometry modeler is shown. New features that extend the capabilities
of GEANE to low density materials are also discussed. The tool is now used by the
PANDA and CBM collaborations at GSI.
| Submitted on behalf of Collaboration (ex, BaBar, ATLAS) | Panda |
|---|
Primary author
Dr
Andrea Fontana
(INFN-Pavia)
Co-authors
Dr
Alberto Panzarasa
(Dept. of Nuclear and Theoretical Physics, University of Pavia)
Prof.
Alberto Rotondi
(Dept. of Nuclear and Theoretical Physics, University of Pavia)
Dr
Denis Bertini
(GSI)
Dr
Lia Lavezzi
(Dept. of Nuclear and Theoretical Physics, University of Pavia)
Dr
Mohammad Al-Turany
(GSI)
Dr
Pablo Genova
(INFN-Pavia)
