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The BTeV Trigger System

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Submitted by:
Eric Vaandering
Updated by:
Eric Vaandering
Document Created:
15 Jul 1999, 17:50
Contents Revised:
15 Jul 1999, 17:50
Metadata Revised:
14 Jul 1999, 17:55
Actually Revised:
04 Jan 2002, 09:43
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BTeV is a dedicated beauty and charm experiment proposed for the Fermilab Tevatron. The broad physics program envisaged for BTeV requires a trigger that is efficient for a wide variety of heavy-quark decays, including 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 advantage 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 track finding 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 of 2 x 10^32 cm^-2 s^-1.
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held from 21 Jun 1999 to 25 Jun 1999 in Bled, Slovenia
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