Measurement of the t t ¯ tt‾ production cross section in the eμ channel in proton-proton collisions at s = 7 √s=7 and 8 TeV
© 2016, The Author(s). Abstract: The inclusive cross section for top quark pair production is measured in proton-proton collisions at s=7 and 8 TeV, corresponding to 5.0 and 19.7 fb−1, respectively, with the CMS experiment at the LHC. The cross sections are measured in the electron-muon channel usin...
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| Format: | Article |
| Language: | English |
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Springer Science and Business Media LLC
2021
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| Online Access: | https://hdl.handle.net/1721.1/134303 |
| _version_ | 1826217584734765056 |
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| author | The CMS Collaboration |
| author2 | Massachusetts Institute of Technology. Department of Physics |
| author_facet | Massachusetts Institute of Technology. Department of Physics The CMS Collaboration |
| author_sort | The CMS Collaboration |
| collection | MIT |
| description | © 2016, The Author(s). Abstract: The inclusive cross section for top quark pair production is measured in proton-proton collisions at s=7 and 8 TeV, corresponding to 5.0 and 19.7 fb−1, respectively, with the CMS experiment at the LHC. The cross sections are measured in the electron-muon channel using a binned likelihood fit to multi-differential final state distributions related to identified b quark jets and other jets in the event. The measured cross section values are 173.6 ± 2.1(stat)− 4.0+ 4.5(syst) ± 3.8(lumi)pb at s=7 TeV, and 244.9 ± 1.4(stat)− 5.5+ 6.3(syst) ± 6.4(lumi)pb at s=8 TeV, in good agreement with QCD calculations at next-to-next-to-leading-order accuracy. The ratio of the cross sections measured at 7 and 8 TeV is determined, as well as cross sections in the fiducial regions defined by the acceptance requirements on the two charged leptons in the final state. The cross section results are used to determine the top quark pole mass via the dependence of the theoretically predicted cross section on the mass, giving a best result of 173. 8− 1.8+ 1.7 GeV. The data at s=8 TeV are also used to set limits, for two neutralino mass values, on the pair production of supersymmetric partners of the top quark with masses close to the top quark mass.[Figure not available: see fulltext.] |
| first_indexed | 2024-09-23T17:06:00Z |
| format | Article |
| id | mit-1721.1/134303 |
| institution | Massachusetts Institute of Technology |
| language | English |
| last_indexed | 2024-09-23T17:06:00Z |
| publishDate | 2021 |
| publisher | Springer Science and Business Media LLC |
| record_format | dspace |
| spelling | mit-1721.1/1343032023-01-06T20:39:49Z Measurement of the t t ¯ tt‾ production cross section in the eμ channel in proton-proton collisions at s = 7 √s=7 and 8 TeV The CMS Collaboration Massachusetts Institute of Technology. Department of Physics Massachusetts Institute of Technology. Laboratory for Nuclear Science © 2016, The Author(s). Abstract: The inclusive cross section for top quark pair production is measured in proton-proton collisions at s=7 and 8 TeV, corresponding to 5.0 and 19.7 fb−1, respectively, with the CMS experiment at the LHC. The cross sections are measured in the electron-muon channel using a binned likelihood fit to multi-differential final state distributions related to identified b quark jets and other jets in the event. The measured cross section values are 173.6 ± 2.1(stat)− 4.0+ 4.5(syst) ± 3.8(lumi)pb at s=7 TeV, and 244.9 ± 1.4(stat)− 5.5+ 6.3(syst) ± 6.4(lumi)pb at s=8 TeV, in good agreement with QCD calculations at next-to-next-to-leading-order accuracy. The ratio of the cross sections measured at 7 and 8 TeV is determined, as well as cross sections in the fiducial regions defined by the acceptance requirements on the two charged leptons in the final state. The cross section results are used to determine the top quark pole mass via the dependence of the theoretically predicted cross section on the mass, giving a best result of 173. 8− 1.8+ 1.7 GeV. The data at s=8 TeV are also used to set limits, for two neutralino mass values, on the pair production of supersymmetric partners of the top quark with masses close to the top quark mass.[Figure not available: see fulltext.] 2021-10-27T20:04:22Z 2021-10-27T20:04:22Z 2016 2019-05-17T20:19:16Z Article http://purl.org/eprint/type/JournalArticle https://hdl.handle.net/1721.1/134303 en 10.1007/JHEP08(2016)029 Journal of High Energy Physics Creative Commons Attribution 4.0 International license https://creativecommons.org/licenses/by/4.0/ application/pdf Springer Science and Business Media LLC Springer |
| spellingShingle | The CMS Collaboration Measurement of the t t ¯ tt‾ production cross section in the eμ channel in proton-proton collisions at s = 7 √s=7 and 8 TeV |
| title | Measurement of the t t ¯ tt‾ production cross section in the eμ channel in proton-proton collisions at s = 7 √s=7 and 8 TeV |
| title_full | Measurement of the t t ¯ tt‾ production cross section in the eμ channel in proton-proton collisions at s = 7 √s=7 and 8 TeV |
| title_fullStr | Measurement of the t t ¯ tt‾ production cross section in the eμ channel in proton-proton collisions at s = 7 √s=7 and 8 TeV |
| title_full_unstemmed | Measurement of the t t ¯ tt‾ production cross section in the eμ channel in proton-proton collisions at s = 7 √s=7 and 8 TeV |
| title_short | Measurement of the t t ¯ tt‾ production cross section in the eμ channel in proton-proton collisions at s = 7 √s=7 and 8 TeV |
| title_sort | measurement of the t t ¯ tt‾ production cross section in the eμ channel in proton proton collisions at s 7 √s 7 and 8 tev |
| url | https://hdl.handle.net/1721.1/134303 |
| work_keys_str_mv | AT thecmscollaboration measurementofthettttproductioncrosssectionintheemchannelinprotonprotoncollisionsats7s7and8tev |