The BTeV Trigger System

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BTeV is a dedicated beauty and charm experiment proposed for the Fer- milab Tevatron. The broad physics program envisaged for BTeV requires a trigger that is efficient for a wide variety of heavy-quark decays, includ- ing those to all-hadronic final states. To achieve this, we plan to trigger on evidence of detached vertices at the very first trigger level, taking ad- vantage of fast-readout pixel detectors to facilitate fast pattern recognition. Simulations show that 100-to-1 rejection of light-quark background events can be achieved at Level 1 using specialized trackfinding hardware, and that an additional factor of 10 to 100 in ... continued below

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Kaplan, Daniel M. October 8, 1999.

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Description

BTeV is a dedicated beauty and charm experiment proposed for the Fer- milab Tevatron. The broad physics program envisaged for BTeV requires a trigger that is efficient for a wide variety of heavy-quark decays, includ- ing those to all-hadronic final states. To achieve this, we plan to trigger on evidence of detached vertices at the very first trigger level, taking ad- vantage of fast-readout pixel detectors to facilitate fast pattern recognition. Simulations show that 100-to-1 rejection of light-quark background events can be achieved at Level 1 using specialized trackfinding hardware, and that an additional factor of 10 to 100 in data reduction can be achieved using general-purpose-processor farms at Levels 2 and 3. This is adequate to allow data-taking at luminosities in excess of 2 x 10<sup>32</sup> cm<sup>-2</sup>s<sup>-1</sup>.

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446 Kilobytes

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  • 6th International Conference on B-Physics at Hadron Machines (BEAUTY 99), Bled, Slovenia, June 21-25, 1999

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  • Other: DE00012624
  • Report No.: FERMILAB-Conf-99/258-E
  • Grant Number: AC02-76CH03000
  • Office of Scientific & Technical Information Report Number: 12624
  • Archival Resource Key: ark:/67531/metadc621253

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  • October 8, 1999

Added to The UNT Digital Library

  • June 16, 2015, 7:43 a.m.

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  • April 18, 2016, 2:33 p.m.

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Kaplan, Daniel M. The BTeV Trigger System, article, October 8, 1999; Batavia, Illinois. (digital.library.unt.edu/ark:/67531/metadc621253/: accessed October 17, 2018), University of North Texas Libraries, Digital Library, digital.library.unt.edu; crediting UNT Libraries Government Documents Department.