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Title: Search for a dark matter candidate produced in association with a single top quark in $p\bar{p}$ collisions at $\sqrt{s} = 1.96$ TeV

Search for a dark matter candidate produced in association with a single top quark in $p\bar{p}$ collisions at $\sqrt{s} = 1.96$ TeV We report a new search for dark matter in a data sample of an integrated luminosity of 7.7 fb{sup -1} of Tevatron p{bar p} collisions at {radical}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 p{bar p} {yields} 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{sup 2}.
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Publication Date:
OSTI Identifier:OSTI ID: 1035924
Report Number(s):FERMILAB-PUB-12-053-E
Journal ID: ISSN 0031--9007; arXiv eprint number arXiv:1202.5653; TRN: US1201261
DOE Contract Number:AC02-07CH11359
Resource Type:Journal Article
Resource Relation:Journal Name: Submitted to Phys.Rev.Lett.; Journal Volume: 108; Journal Issue: 20
Research Org:Fermi National Accelerator Laboratory (FNAL), Batavia, IL
Sponsoring Org:DOE Office of Science
Country of Publication:United States
Language:English
Subject: 72 PHYSICS OF ELEMENTARY PARTICLES AND FIELDS; CROSS SECTIONS; DECAY; FERMILAB COLLIDER DETECTOR; FERMILAB TEVATRON; LUMINOSITY; NONLUMINOUS MATTER; PRODUCTION; STANDARD MODEL; T QUARKS; TRANSVERSE ENERGY Experiment-HEP