Search for Long-Lived Massive Charged Particles in 1.96 TeV pp-bar Collisions
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Aaltonen-2009-Search for Long-Live.pdf
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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
Alternative Title
Search for Long-Lived Massive Charged Particles in 1.96 TeV pp̅ Collisions
Date Issued
July 2009
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
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.
MIT Department
Massachusetts Institute of Technology. Department of Physics
Massachusetts Institute of Technology. Laboratory for Nuclear Science
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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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DOI of Published Version
http://dx.doi.org/10.1103/PhysRevLett.103.021802
