Validating Geant4 Versions 7.1 and 8.3 Against 6.1 for BaBar

Conference · Tue Nov 08 00:00:00 EST 2011

OSTI ID:1029166

Banerjee, Swagato; Brown, David N; Chen, Chunhui; Cote, David; Dubois-Felsmann, Gregory P; Gaponenko, Igor; Kim, Peter C; Lockman, William S; Neal, Homer A; Simi, Gabriele; Telnov, Alexandre V; Wright, Dennis H

Since 2005 and 2006, respectively, Geant4 versions 7.1 and 8.3 have been available, providing: improvements in modeling of multiple scattering; corrections to muon ionization and improved MIP signature; widening of the core of electromagnetic shower shape profiles; newer implementation of elastic scattering for hadronic processes; detailed implementation of Bertini cascade model for kaons and lambdas, and updated hadronic cross-sections from calorimeter beam tests. The effects of these changes in simulation are studied in terms of closer agreement of simulation using Geant4 versions 7.1 and 8.3 as compared to Geant4 version 6.1 with respect to data distributions of: the hit residuals of tracks in BABAR silicon vertex tracker; the photon and K{sub L}{sup 0} shower shapes in the electromagnetic calorimeter; the ratio of energy deposited in the electromagnetic calorimeter and the flux return of the magnet instrumented with a muon detection system composed of resistive plate chambers and limited-streamer tubes; and the muon identification efficiency in the muon detector system of the BABAR detector.

• Research Organization: SLAC National Accelerator Lab., Menlo Park, CA (United States)
• Sponsoring Organization: USDOE
• DOE Contract Number: AC02-76SF00515
• OSTI ID: 1029166
• Report Number(s): SLAC-REPRINT-2011-053; TRN: US1105641
• Resource Relation: Conference: Prepared for International Conference on Computing in High Energy and Nuclear Physics (CHEP 07), Victoria, BC, Canada, 2-7 Sep 2007
• Country of Publication: United States
• Language: English

Related Subjects

72 PHYSICS OF ELEMENTARY PARTICLES AND FIELDS
71 CLASSICAL AND QUANTUM MECHANICS
GENERAL PHYSICS
73 NUCLEAR PHYSICS AND RADIATION PHYSICS
CALORIMETERS
CROSS SECTIONS
EFFICIENCY
ELASTIC SCATTERING
IMPLEMENTATION
IONIZATION
KAONS
MAGNETS
MULTIPLE SCATTERING
MUON DETECTION
MUONS
NUCLEAR PHYSICS
PHOTONS
PLATES
SHAPE
SILICON
SIMULATION
HIGH ENERGY PHYSICS
Computing
Instrumentation
COMP
INST