Search for a Dark Matter Candidate Produced in Association with a Single Top Quark in pp̅ Collisions at √s=1.96 TeV
Author(s)
Gomez-Ceballos, Guillelmo; Goncharov, Maxim; Paus, Christoph M. E.
DownloadAaltonen-2012-Search for a Dark Matter Candidate Produced.pdf (306.3Kb)
PUBLISHER_POLICY
Publisher Policy
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.
Terms of use
Metadata
Show full item recordAbstract
We report a new search for dark matter in a data sample of an integrated luminosity of 7.7 fb[superscript -1] of Tevatron pp̅ collisions at √s=1.96 TeV, collected by the CDF II detector. We search for production of a dark-matter candidate, D, in association with a single top quark. We consider the hadronic decay mode of the top quark exclusively, yielding a final state of three jets with missing transverse energy. The data are consistent with the standard model; we thus set 95% confidence level upper limits on the cross section of the process pp̅ →t+D as a function of the mass of the dark-matter candidate. The limits are approximately 0.5 pb for a dark-matter particle with mass in the range of 0–150 GeV/c[superscript 2].
Date issued
2012-05Department
Massachusetts Institute of Technology. Department of Physics; Massachusetts Institute of Technology. Laboratory for Nuclear ScienceJournal
Physical Review Letters
Publisher
American Physical Society
Citation
T. Aaltonen et al. (CDF Collaboration). "Search for a Dark Matter Candidate Produced in Association with a Single Top Quark in pp̅ Collisions at √s=1.96 TeV" Physical Review Letters 108, 201802 (2012). © 2012 American Physical Society
Version: Final published version
ISSN
0031-9007
1079-7114