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Search for Long-Lived Massive Charged Particles in 1.96 TeV pp-bar Collisions

Author(s)
Xie, Si; Knuteson, Bruce O.; Henderson, C.; Hahn, Kristian Allan; Gomez-Ceballos, Guillelmo; Choudalakis, Georgios; Paus, Christoph M. E.; Makhoul, Khaldoun; Goncharov, Maxim; Bauer, Gerry P; ... Show more Show less
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Alternative title
Search for Long-Lived Massive Charged Particles in 1.96 TeV pp̅ Collisions
Terms of use
Article is made available in accordance with the publisher's policy and may be subject to US copyright law. Please refer to the publisher's site for terms of use.
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Abstract
We performed a signature-based search for long-lived charged massive particles produced in 1.0  fb[superscript -1] of pp̅ collisions at √s=1.96  TeV, collected with the CDF II detector using a high transverse-momentum (pT) muon trigger. The search used time of flight to isolate slowly moving, high-p[subscript T] particles. One event passed our selection cuts with an expected background of 1.9±0.2 events. We set an upper bound on the production cross section and, interpreting this result within the context of a stable scalar top-quark model, set a lower limit on the particle mass of 249  GeV/c[superscript 2] at 95% C.L.
Date issued
2009-07
URI
http://hdl.handle.net/1721.1/51872
Department
Massachusetts Institute of Technology. Department of Physics; Massachusetts Institute of Technology. Laboratory for Nuclear Science
Journal
Physical Review Letters
Publisher
American Physical Society
Citation
CDF Collaboration et al. “Search for Long-Lived Massive Charged Particles in 1.96 TeV pp-bar Collisions.” Physical Review Letters 103.2 (2009): 021802. © 2009 The American Physical Society
Version: Final published version
ISSN
0031-9007

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