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Digital electronics for the inclusion of shower max and preshower wire data in the CDF second-level trigger [electronic resource].

Published
Washington, D.C. : United States. Dept. of Energy, 1993.
Oak Ridge, Tenn. : Distributed by the Office of Scientific and Technical Information, U.S. Dept. of Energy.
Physical Description
5 pages : digital, PDF file
Additional Creators
Argonne National Laboratory, United States. Department of Energy, and United States. Department of Energy. Office of Scientific and Technical Information
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Summary
As part of the upgrade program at CDF, electronics has been built to bring the shower max (CES) and preshower (CPR) data into the trigger at level 2. After each crossing, 384 bits from shower max and 192 from the preshower wires are latched. Data from tracks are bussed to this module to provide the wire address and momentum which are then successively compared to the wire data in large look-up tables. Approximately 50 nanoseconds is required to determine a match, write the results in FIFO, and make the results available to track memory. Monte Carlo analysis has indicated that an increase in efficiency of a factor of three in triggering on b decays will be achieved with this hardware.
Report Numbers
E 1.99:anl-hep-cp--93-48
E 1.99: conf-930537--88
conf-930537--88
anl-hep-cp--93-48
Subject(s)
Other Subject(s)
Note
Published through SciTech Connect.
07/01/1993.
"anl-hep-cp--93-48"
" conf-930537--88"
"DE93017461"
5. annual international industrial symposium on the Super Collider and exhibition,San Francisco, CA (United States),6-8 May 1993.
Dawson, J.W.; Turner, K.J.; Byrum, K.L.; Nodulman, L.J.; Wicklund, A.B.; Gerdes, D.W.; Haberichter, W.N.
Funding Information
W-31109-ENG-38
View MARC record | catkey: 14691544