Combinations of single-top-quark production cross-section measurements and |fLVVtb| determinations at s √s = 7 and 8 TeV with the ATLAS and CMS experiments
This paper presents the combinations of single-top-quark production cross-section measurements by the ATLAS and CMS Collaborations, using data from LHC proton-proton collisions at s = 7 and 8 TeV corresponding to integrated luminosities of 1.17 to 5.1 fb−1 at s = 7 TeV and 12.2 to 20.3 fb−1 at s = 8...
| Main Authors: | , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , |
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| Format: | Article |
| Language: | English |
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Springer Science and Business Media LLC
2020
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| Online Access: | https://hdl.handle.net/1721.1/125732 |
| _version_ | 1826203456960987136 |
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| author | ATLAS Collaboration CMS Collaboration Abercrombie, Daniel Robert Allen, B. Azzolini, Virginia Baty, Austin Alan Bi, R. Brandt, S. Busza, Wit Cali, Ivan Amos D'Alfonso, Mariarosaria Gomez-Ceballos, G. Goncharov, Maxim Harris, Philip Coleman Hsu, D. Hu, M. Klute, Markus Kovalskyi, Dmytro Lee, Y. J. Luckey Jr, P David Maier, Benedikt Marini, Andrea Carlo McGinn, Christopher Francis Mironov, Camelia Maria Narayanan, S. Niu, Xinmei Paus, Christoph M. E. Rankin, Dylan S. Roland, Christof E Roland, Gunther M Shi, Z. Stephans, George S. F. Sumorok, Konstanty C Tatar, Kaya Velicanu, Dragos Alexandru Wang, J. Wang, T. W. Wyslouch, Boleslaw |
| author2 | Massachusetts Institute of Technology. Department of Physics |
| author_facet | Massachusetts Institute of Technology. Department of Physics ATLAS Collaboration CMS Collaboration Abercrombie, Daniel Robert Allen, B. Azzolini, Virginia Baty, Austin Alan Bi, R. Brandt, S. Busza, Wit Cali, Ivan Amos D'Alfonso, Mariarosaria Gomez-Ceballos, G. Goncharov, Maxim Harris, Philip Coleman Hsu, D. Hu, M. Klute, Markus Kovalskyi, Dmytro Lee, Y. J. Luckey Jr, P David Maier, Benedikt Marini, Andrea Carlo McGinn, Christopher Francis Mironov, Camelia Maria Narayanan, S. Niu, Xinmei Paus, Christoph M. E. Rankin, Dylan S. Roland, Christof E Roland, Gunther M Shi, Z. Stephans, George S. F. Sumorok, Konstanty C Tatar, Kaya Velicanu, Dragos Alexandru Wang, J. Wang, T. W. Wyslouch, Boleslaw |
| author_sort | ATLAS Collaboration |
| collection | MIT |
| description | This paper presents the combinations of single-top-quark production cross-section measurements by the ATLAS and CMS Collaborations, using data from LHC proton-proton collisions at s = 7 and 8 TeV corresponding to integrated luminosities of 1.17 to 5.1 fb−1 at s = 7 TeV and 12.2 to 20.3 fb−1 at s = 8 TeV. These combinations are performed per centre-of-mass energy and for each production mode: t-channel, tW, and s-channel. The combined t-channel cross-sections are 67.5 ± 5.7 pb and 87.7 ± 5.8 pb at s = 7 and 8 TeV respectively. The combined tW cross-sections are 16.3 ± 4.1 pb and 23.1 ± 3.6 pb at s = 7 and 8 TeV respectively. For the s-channel cross-section, the combination yields 4.9 ± 1.4 pb at s = 8 TeV. The square of the magnitude of the CKM matrix element Vtb multiplied by a form factor fLV is determined for each production mode and centre-of-mass energy, using the ratio of the measured cross-section to its theoretical prediction. It is assumed that the top-quark-related CKM matrix elements obey the relation |Vtd|, |Vts| ≪ |Vtb|. All the |fLVVtb|2 determinations, extracted from individual ratios at s = 7 and 8 TeV, are combined, resulting in |fLVVtb| = 1.02 ± 0.04 (meas.) ± 0.02 (theo.). All combined measurements are consistent with their corresponding Standard Model predictions.[Figure not available: see fulltext.]. |
| first_indexed | 2024-09-23T12:37:38Z |
| format | Article |
| id | mit-1721.1/125732 |
| institution | Massachusetts Institute of Technology |
| language | English |
| last_indexed | 2024-09-23T12:37:38Z |
| publishDate | 2020 |
| publisher | Springer Science and Business Media LLC |
| record_format | dspace |
| spelling | mit-1721.1/1257322022-09-28T09:03:54Z Combinations of single-top-quark production cross-section measurements and |fLVVtb| determinations at s √s = 7 and 8 TeV with the ATLAS and CMS experiments ATLAS Collaboration CMS Collaboration Abercrombie, Daniel Robert Allen, B. Azzolini, Virginia Baty, Austin Alan Bi, R. Brandt, S. Busza, Wit Cali, Ivan Amos D'Alfonso, Mariarosaria Gomez-Ceballos, G. Goncharov, Maxim Harris, Philip Coleman Hsu, D. Hu, M. Klute, Markus Kovalskyi, Dmytro Lee, Y. J. Luckey Jr, P David Maier, Benedikt Marini, Andrea Carlo McGinn, Christopher Francis Mironov, Camelia Maria Narayanan, S. Niu, Xinmei Paus, Christoph M. E. Rankin, Dylan S. Roland, Christof E Roland, Gunther M Shi, Z. Stephans, George S. F. Sumorok, Konstanty C Tatar, Kaya Velicanu, Dragos Alexandru Wang, J. Wang, T. W. Wyslouch, Boleslaw Massachusetts Institute of Technology. Department of Physics Massachusetts Institute of Technology. Laboratory for Nuclear Science This paper presents the combinations of single-top-quark production cross-section measurements by the ATLAS and CMS Collaborations, using data from LHC proton-proton collisions at s = 7 and 8 TeV corresponding to integrated luminosities of 1.17 to 5.1 fb−1 at s = 7 TeV and 12.2 to 20.3 fb−1 at s = 8 TeV. These combinations are performed per centre-of-mass energy and for each production mode: t-channel, tW, and s-channel. The combined t-channel cross-sections are 67.5 ± 5.7 pb and 87.7 ± 5.8 pb at s = 7 and 8 TeV respectively. The combined tW cross-sections are 16.3 ± 4.1 pb and 23.1 ± 3.6 pb at s = 7 and 8 TeV respectively. For the s-channel cross-section, the combination yields 4.9 ± 1.4 pb at s = 8 TeV. The square of the magnitude of the CKM matrix element Vtb multiplied by a form factor fLV is determined for each production mode and centre-of-mass energy, using the ratio of the measured cross-section to its theoretical prediction. It is assumed that the top-quark-related CKM matrix elements obey the relation |Vtd|, |Vts| ≪ |Vtb|. All the |fLVVtb|2 determinations, extracted from individual ratios at s = 7 and 8 TeV, are combined, resulting in |fLVVtb| = 1.02 ± 0.04 (meas.) ± 0.02 (theo.). All combined measurements are consistent with their corresponding Standard Model predictions.[Figure not available: see fulltext.]. 2020-06-08T20:16:17Z 2020-06-08T20:16:17Z 2019-05 2020-02-14T18:35:58Z Article http://purl.org/eprint/type/JournalArticle 1029-8479 https://hdl.handle.net/1721.1/125732 ATLAS Collaboration and CMS Collaboration (Aaboud, M., et al.), "Combinations of single-top-quark production cross-section measurements and |fLVVtb| determinations at s √s = 7 and 8 TeV with the ATLAS and CMS experiments." Journal of High Energy Physics 2019 (May 2019): no. 88 doi 10.1007/JHEP05(2019)088 ©2019 Author(s) en 10.1007/JHEP05(2019)088 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 | ATLAS Collaboration CMS Collaboration Abercrombie, Daniel Robert Allen, B. Azzolini, Virginia Baty, Austin Alan Bi, R. Brandt, S. Busza, Wit Cali, Ivan Amos D'Alfonso, Mariarosaria Gomez-Ceballos, G. Goncharov, Maxim Harris, Philip Coleman Hsu, D. Hu, M. Klute, Markus Kovalskyi, Dmytro Lee, Y. J. Luckey Jr, P David Maier, Benedikt Marini, Andrea Carlo McGinn, Christopher Francis Mironov, Camelia Maria Narayanan, S. Niu, Xinmei Paus, Christoph M. E. Rankin, Dylan S. Roland, Christof E Roland, Gunther M Shi, Z. Stephans, George S. F. Sumorok, Konstanty C Tatar, Kaya Velicanu, Dragos Alexandru Wang, J. Wang, T. W. Wyslouch, Boleslaw Combinations of single-top-quark production cross-section measurements and |fLVVtb| determinations at s √s = 7 and 8 TeV with the ATLAS and CMS experiments |
| title | Combinations of single-top-quark production cross-section measurements and |fLVVtb| determinations at s √s = 7 and 8 TeV with the ATLAS and CMS experiments |
| title_full | Combinations of single-top-quark production cross-section measurements and |fLVVtb| determinations at s √s = 7 and 8 TeV with the ATLAS and CMS experiments |
| title_fullStr | Combinations of single-top-quark production cross-section measurements and |fLVVtb| determinations at s √s = 7 and 8 TeV with the ATLAS and CMS experiments |
| title_full_unstemmed | Combinations of single-top-quark production cross-section measurements and |fLVVtb| determinations at s √s = 7 and 8 TeV with the ATLAS and CMS experiments |
| title_short | Combinations of single-top-quark production cross-section measurements and |fLVVtb| determinations at s √s = 7 and 8 TeV with the ATLAS and CMS experiments |
| title_sort | combinations of single top quark production cross section measurements and flvvtb determinations at s √s 7 and 8 tev with the atlas and cms experiments |
| url | https://hdl.handle.net/1721.1/125732 |
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