Measurement of the top quark pair production cross-section with ATLAS in the single lepton channel
A measurement of the production cross-section for top quark pairs (t[bar over t]) in pp collisions at √s = 7 TeV is presented using data recorded with the ATLAS detector at the Large Hadron Collider. Events are selected in the single lepton topology by requiring an electron or muon, large missing tr...
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| Format: | Article |
| Language: | en_US |
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Elsevier
2014
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| Online Access: | http://hdl.handle.net/1721.1/92015 https://orcid.org/0000-0002-7586-7253 |
| _version_ | 1811085389712064512 |
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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 production cross-section for top quark pairs (t[bar over t]) in pp collisions at √s = 7 TeV is presented using data recorded with the ATLAS detector at the Large Hadron Collider. Events are selected in the single lepton topology by requiring an electron or muon, large missing transverse momentum and at least three jets. With a data sample of 35 pb[superscript −1], two different multivariate methods, one of which uses b-quark jet identification while the other does not, use kinematic variables to obtain cross-section measurements of σ[subscript t bar over t] = 187 ± 11 (stat.) [+18 over −17] (syst.) ± 6 (lumi.) pb and σ[subscript t bar over t] = 173 ± 17 (stat.) [+18 over −16] (syst.) ±6 (lumi.) pb respectively. The two measurements are in agreement with each other and with QCD calculations. The first measurement has a better a priori sensitivity and constitutes the main result of this Letter. |
| first_indexed | 2024-09-23T13:08:49Z |
| format | Article |
| id | mit-1721.1/92015 |
| institution | Massachusetts Institute of Technology |
| language | en_US |
| last_indexed | 2024-09-23T13:08:49Z |
| publishDate | 2014 |
| publisher | Elsevier |
| record_format | dspace |
| spelling | mit-1721.1/920152022-10-01T13:17:46Z Measurement of the top quark pair production cross-section with ATLAS in the single lepton channel Taylor, Frank E. Massachusetts Institute of Technology. Department of Physics Taylor, Frank E. A measurement of the production cross-section for top quark pairs (t[bar over t]) in pp collisions at √s = 7 TeV is presented using data recorded with the ATLAS detector at the Large Hadron Collider. Events are selected in the single lepton topology by requiring an electron or muon, large missing transverse momentum and at least three jets. With a data sample of 35 pb[superscript −1], two different multivariate methods, one of which uses b-quark jet identification while the other does not, use kinematic variables to obtain cross-section measurements of σ[subscript t bar over t] = 187 ± 11 (stat.) [+18 over −17] (syst.) ± 6 (lumi.) pb and σ[subscript t bar over t] = 173 ± 17 (stat.) [+18 over −16] (syst.) ±6 (lumi.) pb respectively. The two measurements are in agreement with each other and with QCD calculations. The first measurement has a better a priori sensitivity and constitutes the main result of this Letter. European Organization for Nuclear Research United States. Dept. of Energy National Science Foundation (U.S.) Brookhaven National Laboratory 2014-12-03T16:43:55Z 2014-12-03T16:43:55Z 2012-04 2012-03 Article http://purl.org/eprint/type/JournalArticle 03702693 http://hdl.handle.net/1721.1/92015 Aad, G., B. Abbott, J. Abdallah, A.A. Abdelalim, A. Abdesselam, O. Abdinov, B. Abi, et al. “Measurement of the Top Quark Pair Production Cross-Section with ATLAS in the Single Lepton Channel.” Physics Letters B 711, no. 3–4 (May 2012): 244–263. © 2012 CERN https://orcid.org/0000-0002-7586-7253 en_US http://dx.doi.org/10.1016/j.physletb.2012.03.083 Physics Letters B Creative Commons Attribution http://creativecommons.org/licenses/by/3.0/ application/pdf Elsevier Elsevier |
| spellingShingle | Taylor, Frank E. Measurement of the top quark pair production cross-section with ATLAS in the single lepton channel |
| title | Measurement of the top quark pair production cross-section with ATLAS in the single lepton channel |
| title_full | Measurement of the top quark pair production cross-section with ATLAS in the single lepton channel |
| title_fullStr | Measurement of the top quark pair production cross-section with ATLAS in the single lepton channel |
| title_full_unstemmed | Measurement of the top quark pair production cross-section with ATLAS in the single lepton channel |
| title_short | Measurement of the top quark pair production cross-section with ATLAS in the single lepton channel |
| title_sort | measurement of the top quark pair production cross section with atlas in the single lepton channel |
| url | http://hdl.handle.net/1721.1/92015 https://orcid.org/0000-0002-7586-7253 |
| work_keys_str_mv | AT taylorfranke measurementofthetopquarkpairproductioncrosssectionwithatlasinthesingleleptonchannel |