Measurement of the charge asymmetry in top quark pair production in pp collisions at s√=7 TeV using the ATLAS detector
A measurement of the top-antitop production charge asymmetry A[subscript C] is presented using data corresponding to an integrated luminosity of 1.04 fb[superscript −1] of pp collisions at s√=7 TeV collected by the ATLAS detector at the LHC. Events are selected with a single lepton (electron or muo...
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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/1721.1/106181 https://orcid.org/0000-0002-7586-7253 |
| _version_ | 1811069373588176896 |
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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 measurement of the top-antitop production charge asymmetry A[subscript C] is presented using data corresponding to an integrated luminosity of 1.04 fb[superscript −1] of pp collisions at s√=7 TeV collected by the ATLAS detector at the LHC. Events are selected with a single lepton (electron or muon), missing transverse momentum and at least four jets of which at least one jet is identified as coming from a b-quark. A kinematic fit is used to reconstruct the t[bar over t] event topology. After background subtraction, a Bayesian unfolding procedure is performed to correct for acceptance and detector effects. The measured value of A[subscript C] is A[subscript C]=−0.019±0.028 (stat.)±0.024 (syst.), consistent with the prediction from the MC@NLO Monte Carlo generator of A[subscript C]=0.006±0.002. Measurements of A[subscript C] in two ranges of invariant mass of the top-antitop pair are also shown. |
| first_indexed | 2024-09-23T08:09:59Z |
| format | Article |
| id | mit-1721.1/106181 |
| institution | Massachusetts Institute of Technology |
| language | en_US |
| last_indexed | 2024-09-23T08:09:59Z |
| publishDate | 2016 |
| publisher | Springer-Verlag |
| record_format | dspace |
| spelling | mit-1721.1/1061812022-09-30T08:02:04Z Measurement of the charge asymmetry in top quark pair production in pp collisions at s√=7 TeV using the ATLAS detector Taylor, Frank E Massachusetts Institute of Technology. Department of Physics Taylor, Frank E A measurement of the top-antitop production charge asymmetry A[subscript C] is presented using data corresponding to an integrated luminosity of 1.04 fb[superscript −1] of pp collisions at s√=7 TeV collected by the ATLAS detector at the LHC. Events are selected with a single lepton (electron or muon), missing transverse momentum and at least four jets of which at least one jet is identified as coming from a b-quark. A kinematic fit is used to reconstruct the t[bar over t] event topology. After background subtraction, a Bayesian unfolding procedure is performed to correct for acceptance and detector effects. The measured value of A[subscript C] is A[subscript C]=−0.019±0.028 (stat.)±0.024 (syst.), consistent with the prediction from the MC@NLO Monte Carlo generator of A[subscript C]=0.006±0.002. Measurements of A[subscript C] in two ranges of invariant mass of the top-antitop pair are also shown. United States. Dept. of Energy National Science Foundation (U.S.) Brookhaven National Laboratory 2016-12-29T21:05:46Z 2016-12-29T21:05:46Z 2012-06 2012-05 Article http://purl.org/eprint/type/JournalArticle 1434-6044 1434-6052 http://hdl.handle.net/1721.1/106181 The ATLAS Collaboration et al. “Measurement of the Charge Asymmetry in Top Quark Pair Production in Pp Collisions at √s=7 TeV Using the ATLAS Detector.” The European Physical Journal C 72.6 (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/s10052-012-2039-5 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 Measurement of the charge asymmetry in top quark pair production in pp collisions at s√=7 TeV using the ATLAS detector |
| title | Measurement of the charge asymmetry in top quark pair production in pp collisions at s√=7 TeV using the ATLAS detector |
| title_full | Measurement of the charge asymmetry in top quark pair production in pp collisions at s√=7 TeV using the ATLAS detector |
| title_fullStr | Measurement of the charge asymmetry in top quark pair production in pp collisions at s√=7 TeV using the ATLAS detector |
| title_full_unstemmed | Measurement of the charge asymmetry in top quark pair production in pp collisions at s√=7 TeV using the ATLAS detector |
| title_short | Measurement of the charge asymmetry in top quark pair production in pp collisions at s√=7 TeV using the ATLAS detector |
| title_sort | measurement of the charge asymmetry in top quark pair production in pp collisions at s√ 7 tev using the atlas detector |
| url | http://hdl.handle.net/1721.1/106181 https://orcid.org/0000-0002-7586-7253 |
| work_keys_str_mv | AT taylorfranke measurementofthechargeasymmetryintopquarkpairproductioninppcollisionsats7tevusingtheatlasdetector |