Measurement of the charge asymmetry in top-quark pair production in the lepton-plus-jets final state in pp collision data at √s = 8 TeV with the ATLAS detector
This paper reports inclusive and differential measurements of the t[bar over t] charge asymmetry A[subscript C] in 20.3 fb[superscript −1] of s√= 8 TeVs pp collisions recorded by the ATLAS experiment at the Large Hadron Collider at CERN. Three differential measurements are performed as a functio...
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| Format: | Article |
| Language: | en_US |
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Springer-Verlag
2017
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| Online Access: | http://hdl.handle.net/1721.1/106553 https://orcid.org/0000-0002-7586-7253 |
| _version_ | 1811071037441310720 |
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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 | This paper reports inclusive and differential measurements of the t[bar over t] charge asymmetry A[subscript C] in 20.3 fb[superscript −1] of s√= 8 TeVs pp collisions recorded by the ATLAS experiment at the Large Hadron Collider at CERN. Three differential measurements are performed as a function of the invariant mass, transverse momentum and longitudinal boost of the t[bar over t] system. The t[bar over t] pairs are selected in the single-lepton channels (e or μ) with at least four jets, and a likelihood fit is used to reconstruct the t[bar over t] event kinematics. A Bayesian unfolding procedure is performed to infer the asymmetry at parton level from the observed data distribution. The inclusive t[bar over t] charge asymmetry is measured to be AC=0.009±0.005 (stat. + syst.). The inclusive and differential measurements are compatible with the values predicted by the Standard Model. |
| first_indexed | 2024-09-23T08:45:09Z |
| format | Article |
| id | mit-1721.1/106553 |
| institution | Massachusetts Institute of Technology |
| language | en_US |
| last_indexed | 2024-09-23T08:45:09Z |
| publishDate | 2017 |
| publisher | Springer-Verlag |
| record_format | dspace |
| spelling | mit-1721.1/1065532022-09-23T14:19:33Z Measurement of the charge asymmetry in top-quark pair production in the lepton-plus-jets final state in pp collision data at √s = 8 TeV with the ATLAS detector Taylor, Frank E Massachusetts Institute of Technology. Department of Physics Taylor, Frank E This paper reports inclusive and differential measurements of the t[bar over t] charge asymmetry A[subscript C] in 20.3 fb[superscript −1] of s√= 8 TeVs pp collisions recorded by the ATLAS experiment at the Large Hadron Collider at CERN. Three differential measurements are performed as a function of the invariant mass, transverse momentum and longitudinal boost of the t[bar over t] system. The t[bar over t] pairs are selected in the single-lepton channels (e or μ) with at least four jets, and a likelihood fit is used to reconstruct the t[bar over t] event kinematics. A Bayesian unfolding procedure is performed to infer the asymmetry at parton level from the observed data distribution. The inclusive t[bar over t] charge asymmetry is measured to be AC=0.009±0.005 (stat. + syst.). The inclusive and differential measurements are compatible with the values predicted by the Standard Model. 2017-01-20T15:59:21Z 2017-01-20T15:59:21Z 2016-02 2015-09 Article http://purl.org/eprint/type/JournalArticle 1434-6044 1434-6052 http://hdl.handle.net/1721.1/106553 Atlas Collaboration et al. “Measurement of the Charge Asymmetry in Top-Quark Pair Production in the Lepton-plus-Jets Final State in Pp Collision Data at √s = 8 TeV with the ATLAS Detector.” The European Physical Journal C 76.2 (2016): n. pag. © 2016 CERN for the benefit of the ATLAS collaboration https://orcid.org/0000-0002-7586-7253 en_US http://dx.doi.org/10.1140/epjc/s10052-016-3910-6 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 the lepton-plus-jets final state in pp collision data at √s = 8 TeV with the ATLAS detector |
| title | Measurement of the charge asymmetry in top-quark pair production in the lepton-plus-jets final state in pp collision data at √s = 8 TeV with the ATLAS detector |
| title_full | Measurement of the charge asymmetry in top-quark pair production in the lepton-plus-jets final state in pp collision data at √s = 8 TeV with the ATLAS detector |
| title_fullStr | Measurement of the charge asymmetry in top-quark pair production in the lepton-plus-jets final state in pp collision data at √s = 8 TeV with the ATLAS detector |
| title_full_unstemmed | Measurement of the charge asymmetry in top-quark pair production in the lepton-plus-jets final state in pp collision data at √s = 8 TeV with the ATLAS detector |
| title_short | Measurement of the charge asymmetry in top-quark pair production in the lepton-plus-jets final state in pp collision data at √s = 8 TeV with the ATLAS detector |
| title_sort | measurement of the charge asymmetry in top quark pair production in the lepton plus jets final state in pp collision data at √s 8 tev with the atlas detector |
| url | http://hdl.handle.net/1721.1/106553 https://orcid.org/0000-0002-7586-7253 |
| work_keys_str_mv | AT taylorfranke measurementofthechargeasymmetryintopquarkpairproductionintheleptonplusjetsfinalstateinppcollisiondataats8tevwiththeatlasdetector |