A search for t[bar over t] resonances with the ATLAS detector in 2.05 fb[superscript −1] of proton-proton collisions at s√=7 TeV
A search for top quark pair resonances in final states containing at least one electron or muon has been performed with the ATLAS experiment at the CERN Large Hadron Collider. The search uses a data sample corresponding to an integrated luminosity of 2.05 fb[superscript −1], which was recorded in 20...
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| Format: | Article |
| Language: | en_US |
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Springer-Verlag
2016
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| Online Access: | http://hdl.handle.net/1721.1/106149 https://orcid.org/0000-0002-7586-7253 |
| _version_ | 1826191024809050112 |
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| author | Taylor, Frank E |
| author2 | Massachusetts Institute of Technology. Department of Physics |
| author_facet | Massachusetts Institute of Technology. Department of Physics Taylor, Frank E |
| author_sort | Taylor, Frank E |
| collection | MIT |
| description | A search for top quark pair resonances in final states containing at least one electron or muon has been performed with the ATLAS experiment at the CERN Large Hadron Collider. The search uses a data sample corresponding to an integrated luminosity of 2.05 fb[superscript −1], which was recorded in 2011 at a proton-proton centre-of-mass energy of 7 TeV. No evidence for a resonance is found and limits are set on the production cross-section times branching ratio to t[bar over t] for narrow and wide resonances. For narrow Z′ bosons, the observed 95 % Bayesian credibility level limits range from 9.3 pb to 0.95 pb for masses in the range of m[subscript Z′]=500 GeV to m[subscript Z′]=1300 GeV. The corresponding excluded mass region for a leptophobic topcolour Z′ boson (Kaluza-Klein gluon excitation in the Randall-Sundrum model) is m[subscript Z′]<880 GeV (mgKK<1130 GeV m[subscript gKK]<1130 GeV). |
| first_indexed | 2024-09-23T08:48:55Z |
| format | Article |
| id | mit-1721.1/106149 |
| institution | Massachusetts Institute of Technology |
| language | en_US |
| last_indexed | 2024-09-23T08:48:55Z |
| publishDate | 2016 |
| publisher | Springer-Verlag |
| record_format | dspace |
| spelling | mit-1721.1/1061492022-09-30T11:30:21Z A search for t[bar over t] resonances with the ATLAS detector in 2.05 fb[superscript −1] of proton-proton collisions at s√=7 TeV A search for tt¯ resonances with the ATLAS detector in 2.05 fb−1 of proton-proton collisions at s√=7 TeV Taylor, Frank E Massachusetts Institute of Technology. Department of Physics Taylor, Frank E A search for top quark pair resonances in final states containing at least one electron or muon has been performed with the ATLAS experiment at the CERN Large Hadron Collider. The search uses a data sample corresponding to an integrated luminosity of 2.05 fb[superscript −1], which was recorded in 2011 at a proton-proton centre-of-mass energy of 7 TeV. No evidence for a resonance is found and limits are set on the production cross-section times branching ratio to t[bar over t] for narrow and wide resonances. For narrow Z′ bosons, the observed 95 % Bayesian credibility level limits range from 9.3 pb to 0.95 pb for masses in the range of m[subscript Z′]=500 GeV to m[subscript Z′]=1300 GeV. The corresponding excluded mass region for a leptophobic topcolour Z′ boson (Kaluza-Klein gluon excitation in the Randall-Sundrum model) is m[subscript Z′]<880 GeV (mgKK<1130 GeV m[subscript gKK]<1130 GeV). United States. Dept. of Energy National Science Foundation (U.S.) Brookhaven National Laboratory 2016-12-27T19:54:18Z 2016-12-27T19:54:18Z 2012-07 2012-07 Article http://purl.org/eprint/type/JournalArticle 1434-6044 1434-6052 http://hdl.handle.net/1721.1/106149 The ATLAS Collaboration et al. “A Search for t[bar over t] Resonances with the ATLAS Detector in 2.05 fb[superscript −1] of Proton-Proton Collisions at √s=7 TeV.” The European Physical Journal C 72.7 (2012): n. pag. © 2012 CERN for the benefit of the ATLAS collaboration https://orcid.org/0000-0002-7586-7253 en_US http://dx.doi.org/10.1140/epjc/s10052-012-2083-1 The European Physical Journal C Creative Commons Attribution 4.0 International License http://creativecommons.org/licenses/by/4.0/ application/pdf Springer-Verlag Springer |
| spellingShingle | Taylor, Frank E A search for t[bar over t] resonances with the ATLAS detector in 2.05 fb[superscript −1] of proton-proton collisions at s√=7 TeV |
| title | A search for t[bar over t] resonances with the ATLAS detector in 2.05 fb[superscript −1] of proton-proton collisions at s√=7 TeV |
| title_full | A search for t[bar over t] resonances with the ATLAS detector in 2.05 fb[superscript −1] of proton-proton collisions at s√=7 TeV |
| title_fullStr | A search for t[bar over t] resonances with the ATLAS detector in 2.05 fb[superscript −1] of proton-proton collisions at s√=7 TeV |
| title_full_unstemmed | A search for t[bar over t] resonances with the ATLAS detector in 2.05 fb[superscript −1] of proton-proton collisions at s√=7 TeV |
| title_short | A search for t[bar over t] resonances with the ATLAS detector in 2.05 fb[superscript −1] of proton-proton collisions at s√=7 TeV |
| title_sort | search for t bar over t resonances with the atlas detector in 2 05 fb superscript 1 of proton proton collisions at s√ 7 tev |
| url | http://hdl.handle.net/1721.1/106149 https://orcid.org/0000-0002-7586-7253 |
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