Simulation of PEP-II Accelerator Backgrounds Using TURTLE

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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 program of beam-gas and luminosity-background simulations, that include the effects of the detector solenoidal field, detailed modeling of limiting apertures in both ... continued below

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3 pages

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Barlow, R. J.; Fieguth, T.; Kozanecki, W.; Majewski, S. A.; Roudeau, P. & Stocchi, A. February 15, 2006.

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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 program of beam-gas and luminosity-background simulations, that include the effects of the detector solenoidal field, detailed modeling 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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3 pages

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  • Prepared for Particle Accelerator Conference (PAC 05), Knoxville, Tennessee, 16-20 May 2005

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  • Report No.: SLAC-PUB-11691
  • Grant Number: AC02-76SF00515
  • Office of Scientific & Technical Information Report Number: 876454
  • Archival Resource Key: ark:/67531/metadc877234

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  • February 15, 2006

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  • Sept. 21, 2016, 2:29 a.m.

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  • Aug. 1, 2017, 12:36 p.m.

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Barlow, R. J.; Fieguth, T.; Kozanecki, W.; Majewski, S. A.; Roudeau, P. & Stocchi, A. Simulation of PEP-II Accelerator Backgrounds Using TURTLE, article, February 15, 2006; [Menlo Park, California]. (digital.library.unt.edu/ark:/67531/metadc877234/: accessed August 16, 2017), University of North Texas Libraries, Digital Library, digital.library.unt.edu; crediting UNT Libraries Government Documents Department.