Search for heavy vector-like quarks coupling to light quarks in proton-proton collisions at √s=7 TeV with the ATLAS detector*
This Letter presents a search for singly produced vector-like quarks, Q, coupling to light quarks, q. The search is sensitive to both charged current (CC) and neutral current (NC) processes, pp→Qq→Wqq′ and pp→Qq→Zqq′ with a leptonic decay of the vector gauge boson. In 1.04 fb−1 of data taken in 2011...
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| Hauptverfasser: | , , , , , , , , , , , , , , , , , , , , , , , , |
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| Körperschaft: | |
| Dokumenttyp: | Article (Journal) |
| Sprache: | Englisch |
| Veröffentlicht: |
2 April 2012
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| In: |
Physics letters
Year: 2012, Jahrgang: 712, Heft: 1, Pages: 22-39 |
| ISSN: | 1873-2445 |
| DOI: | 10.1016/j.physletb.2012.03.082 |
| Online-Zugang: | Verlag, Volltext: http://dx.doi.org/10.1016/j.physletb.2012.03.082 Verlag, Volltext: http://www.sciencedirect.com/science/article/pii/S0370269312003802 
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| Verfasserangaben: | ATLAS Collaboration* |
MARC
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| 245 | 1 | 0 | |a Search for heavy vector-like quarks coupling to light quarks in proton-proton collisions at √s=7 TeV with the ATLAS detector* |c ATLAS Collaboration* |
| 246 | 3 | 0 | |a sqrt |
| 246 | 3 | 3 | |a Search for heavy vector-like quarks coupling to light quarks in proton-proton collisions at square root s = 7 TeV with the ATLAS detector |
| 264 | 1 | |c 2 April 2012 | |
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| 500 | |a ATLAS Collaboration: G. Aad, C.F. Anders, V. Andrei, J.T. Childers, Y. Davygora, T.A. Dietzsch, C. Geweniger, P. Hanke, M. Henke, A. Khomich, E.-E. Kluge, A. Kugel, V. Lendermann, R. Maenner, K. Meier, F. Mueller, S. Poddar, V. Radescu, S. Schaetzel, V. Scharf, A. Schöning, N. Schroer, H.-C. Schultz-Coulon, R. Stamen, M. Wessels [und weitere] | ||
| 500 | |a Gesehen am 30.11.2018 | ||
| 520 | |a This Letter presents a search for singly produced vector-like quarks, Q, coupling to light quarks, q. The search is sensitive to both charged current (CC) and neutral current (NC) processes, pp→Qq→Wqq′ and pp→Qq→Zqq′ with a leptonic decay of the vector gauge boson. In 1.04 fb−1 of data taken in 2011 by the ATLAS experiment at a center-of-mass energy s=7 TeV, no evidence of such heavy vector-like quarks is observed above the expected Standard Model background. Limits on the heavy vector-like quark production cross section times branching ratio as a function of mass mQ are obtained. For a coupling κqQ=v/mQ, where v is the Higgs vacuum expectation value, 95% C.L. lower limits on the mass of a vector-like quark are set at 900 GeV and 760 GeV from CC and NC processes, respectively. | ||
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