10,019 research outputs found
ALICE experience with GEANT4
Since its release in 1999, the LHC experiments have been evaluating GEANT4 in
view of adopting it as a replacement for the obsolescent GEANT3 transport
MonteCarlo. The ALICE collaboration has decided to perform a detailed physics
validation of elementary hadronic processes against experimental data already
used in international benchmarks. In one test, proton interactions on different
nuclear targets have been simulated, and the distribution of outgoing particles
has been compared to data. In a second test, penetration of quasi-monoenergetic
low energy neutrons through a thick shielding has been simulated and again
compared to experimental data. In parallel, an effort has been put on the
integration of GEANT4 in the AliRoot framework. An overview of the present
status of ALICE GEANT4 simulation and the remaining problems will be presented.
This document will describe in detail the results of these tests, together with
the improvements that the GEANT4 team has made to the program as a result of
the feedback received from the ALICE collaboration. We will also describe the
remaining problems that have been communicated to GEANT4 but not yet addressed.Comment: 8 pages, 12 figures, for the CHEP03 conference proceeding
The Queering of Cuban History: Carmelita Tropicana and Memories of the Revolution
Through the persona Carmelita Tropicana, Alina Troyano explores her Cuban, American, and queer identities by re-writing Cuban history in Memories of the Revolution. Here Troyano queers the heteronormative interpretation of her communities’ past by including alternative sexual and gender representations. Through this political process, Troyano ultimately writes a space for herself within these culture(s). (ICC
Superscaling and Charge-changing Neutrino Cross Sections
The superscaling function extracted from inclusive electron scattering data
is used to predict high energy charge-changing neutrino cross sections in the
quasi-elastic and regions.Comment: 3 pages, 2 figures, to appear in the Proceedings of the 7th
International Workshop on Neutrino Factories and Superbeams, Laboratori
Nazionali di Frascati, Frascati (Rome), June 21 - 26, 200
The Virtual Monte Carlo
The concept of Virtual Monte Carlo (VMC) has been developed by the ALICE
Software Project to allow different Monte Carlo simulation programs to run
without changing the user code, such as the geometry definition, the detector
response simulation or input and output formats. Recently, the VMC classes have
been integrated into the ROOT framework, and the other relevant packages have
been separated from the AliRoot framework and can be used individually by any
other HEP project. The general concept of the VMC and its set of base classes
provided in ROOT will be presented. Existing implementations for Geant3, Geant4
and FLUKA and simple examples of usage will be described.Comment: Talk from the 2003 Computing in High Energy and Nuclear Physics
(CHEP03), La Jolla, Ca, USA, March 2003, 8 pages, LaTeX, 6 eps figures. PSN
THJT006. See http://root.cern.ch/root/vmc/VirtualMC.htm
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