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Simulation of PEP-II Accelerator Backgrounds Using TURTLE

Abstract : We present studies of accelerator-induced backgrounds in the BaBar detector at the SLAC B-Factory, carried out using LPTURTLE, a modified version of the DECAY TURTLE simulation package. Lost-particle backgrounds in PEP-II are dominated by a combination of beam-gas bremstrahlung, beam-gas Coulomb scattering, radiative- Bhabha events and beam-beam blow-up. The radiation damage and detector occupancy caused by the associated electromagnetic shower debris can limit the usable luminosity. In order to understand and mitigate such backgrounds, we have performed a full programme of beamgas and luminosity-background simulations, that include the effects of the detector solenoidal field, detailed modelling of limiting apertures in both collider rings, and optimization of the betatron collimation scheme in the presence of large transverse tails.
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Submitted on : Wednesday, March 1, 2006 - 4:47:59 PM
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  • HAL Id : in2p3-00025709, version 1




R.J. Barlow, T. Fieguth, W. Kozanecki, S.A. Majewski, P. Roudeau, et al.. Simulation of PEP-II Accelerator Backgrounds Using TURTLE. Particle Accelerator Conference (PAC 05), May 2005, Knoxville, United States. pp.TPPP023. ⟨in2p3-00025709⟩



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