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Jet calorimetric trigger [electronic resource].

Published
Washington, D.C. : United States. Dept. of Energy. Office of Energy Research, 1999.
Oak Ridge, Tenn. : Distributed by the Office of Scientific and Technical Information, U.S. Dept. of Energy.
Physical Description
97 Kilobytes pages : digital, PDF file
Additional Creators
Fermi National Accelerator Laboratory, United States. Department of Energy. Office of Energy Research, and United States. Department of Energy. Office of Scientific and Technical Information
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Summary
The problem in triggering on jets in hadron colliders is that the largest background in the trigger is also a jet. Therefore, we must strive to trigger as incisively as possible. Since the basic physics resides in the transverse momentum, Pt, of the jet, this means to trigger with as sharp a Pt discriminant as possible. The basic problem is different for electrons or photons, where the backgrounds are typically jets. For heavy quarks, like b, the backgrounds are mismeasured secondary vertices. The situation is similar to that for muons, where the largest background is due to real muons from pion decays in particle cascades or from heavy flavor semi-leptonic decays arising from gluon splitting in ordinary QCD jets. As with jets, the issue for the muon trigger is to make as sharp a Pt cut as possible since the background muons dominate at low Pt.
Report Numbers
E 1.99:fermilab-tm-2088
fermilab-tm-2088
Subject(s)
Other Subject(s)
Note
Published through SciTech Connect.
09/27/1999.
"fermilab-tm-2088"
Dan Green.
Type of Report and Period Covered Note
Topical;
Funding Information
AC02-76CH03000
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