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
Description/Abstract
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}.
| DOI | 10.1103/PhysRevLett.108.201802 |
|---|---|
| Creator/Author: | Aaltonen, T. ; /Helsinki Inst. of Phys. ; Alvarez Gonzalez, B. ; /Oviedo U. /Cantabria Inst. of Phys. ; Amerio, S. ; /INFN, Padua ; Amidei, D. ; /Michigan U. ; Anastassov, A. ; /Northwestern U. /Fermilab ; Annovi, A. ; /Frascati ; Antos, J. ; /Comenius U. ; Anza, F. ; /INFN, Pisa ; Apollinari, G. ; /Fermilab ; Appel, J.A. ; /Fermilab ; Arisawa, T. ; /Waseda U. /Dubna, JINR |
| Publication Date: | 2012 Feb 01 |
| OSTI Identifier: | OSTI ID: 1035924 |
| Report Number(s): | FERMILAB-PUB-12-053-E |
| DOE Contract Number: | AC02-07CH11359 |
| DOI: | 10.1103/PhysRevLett.108.201802 |
| Other Number(s): | Journal ID: ISSN 0031--9007; Other: arXiv eprint number arXiv:1202.5653; TRN: US1201261 |
| 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 |
| 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 |
| Related Subject: | Experiment-HEP |
| Country of Publication: | United States |
| Language: | English |
| Update Date: | 2012 Dec 05 |
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