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Supercollider physics [electronic resource].

Published
Berkeley, Calif. : Lawrence Berkeley National Laboratory, 1984.
Oak Ridge, Tenn. : Distributed by the Office of Scientific and Technical Information, U.S. Dept. of Energy.
Physical Description
Pages: 34 : digital, PDF file
Additional Creators
Lawrence Berkeley National Laboratory and United States. Department of Energy. Office of Scientific and Technical Information
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Summary
Several unsolved problems concerning backgrounds prevent one from claiming that some particular signal is clearly observable. One of the most critical issues concerns the observability of W's and Z's from their decays into hadronic jets. Many signals for new physics involve final states with W's or Z's (e.g. the minimal Higgs discussed in D). If one is restricted to observing the W's and Z's via their leptonic modes (which may not be possible for final states involving more than one W) only a small number of events will be detected - 5000 Z pairs decaying into ee and ..mu mu.. results in only 18 detected events. The physics background to hadronic decays of W and Z is from QCD events with multiple jets. In the case of final states with 4 jets we have no reliable QCD estimate. Many particle searches (e.g. supersymmetric ones) involve signals which have missing transverse momentum, so the importance of hermetic detectors with 4 ..pi.. coverage cannot be overstated. The difference between a pp and a proton-antiproton collider is limited to a few special cases where the presence of valence antiquarks in the anti-proton is important (for example is the production of a new W). In order to exploit this advantage a certain minimum luminosity is required. (approx. 5 x 10/sup 31/ cm/sup -2/ sec/sup -1/ for ..sqrt..s = 40 TeV). A 40 TeV machine operating at a luminosity of at least 10/sup 32/ cm/sup -2/ sec/sup -1/, seems capable of answering the fundamental questions surrounding the breaking of weak interactions. The same assurance cannot be given for a 10 TeV Machine at the same luminosity. 23 references, 23 figures.
Report Numbers
E 1.99:lbl-17719
E 1.99: conf-8403130-2
conf-8403130-2
lbl-17719
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Other Subject(s)
Note
Published through SciTech Connect.
04/01/1984.
"lbl-17719"
" conf-8403130-2"
"DE84013237"
4. topical workshop on proton antiproton collider physics, Bern, Switzerland, 5 Mar 1984.
Hinchliffe, I.
Funding Information
AC03-76SF00098
View MARC record | catkey: 14699699