Measurement of top quark polarisation in t-channel single top quark production
A first measurement of the top quark spin asymmetry, sensitive to the top quark polarisation, in t-channel single top quark production is presented. It is based on a sample of pp collisions at a centre-of-mass energy of 8 TeV corresponding to an integrated luminosity of 19.7 fb[superscript −1]. A hi...
| _version_ | 1810977702473105408 |
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| author | Apyan, Aram Barbieri, Riccardo Baty, Austin Alan Bierwagen, Katharina Brandt, Stephanie Akemi Busza, Wit Cali, Ivan Amos Demiragli, Zeynep Di Matteo, Leonardo Gomez-Ceballos, Guillelmo Goncharov, Maxim Gulhan, Doga Can Iiyama, Yutaro Innocenti, Gian Michele Klute, Markus Kovalskyi, Dmytro Lai, Yue Shi Lee, Yen-Jie Levin, Andrew Michael Luckey Jr, P David Marini, Andrea Carlo McGinn, Christopher Francis Mironov, Camelia Maria Narayanan, Siddharth Madhavan Niu, Xinmei Paus, Christoph M. E. Ralph, Duncan Kelley Roland, Christof E Roland, Gunther M Salfeld-Nebgen, Jakob Maxillian Henry Stephans, George S. F. Sumorok, Konstanty C Varma, Mukund Madhav Velicanu, Dragos Alexandru Veverka, Jan Wang, J. Wang, Ta-Wei Wyslouch, Boleslaw Yang, Mingming Wyslouch, Victoria |
| author2 | Massachusetts Institute of Technology. Department of Physics |
| author_facet | Massachusetts Institute of Technology. Department of Physics Apyan, Aram Barbieri, Riccardo Baty, Austin Alan Bierwagen, Katharina Brandt, Stephanie Akemi Busza, Wit Cali, Ivan Amos Demiragli, Zeynep Di Matteo, Leonardo Gomez-Ceballos, Guillelmo Goncharov, Maxim Gulhan, Doga Can Iiyama, Yutaro Innocenti, Gian Michele Klute, Markus Kovalskyi, Dmytro Lai, Yue Shi Lee, Yen-Jie Levin, Andrew Michael Luckey Jr, P David Marini, Andrea Carlo McGinn, Christopher Francis Mironov, Camelia Maria Narayanan, Siddharth Madhavan Niu, Xinmei Paus, Christoph M. E. Ralph, Duncan Kelley Roland, Christof E Roland, Gunther M Salfeld-Nebgen, Jakob Maxillian Henry Stephans, George S. F. Sumorok, Konstanty C Varma, Mukund Madhav Velicanu, Dragos Alexandru Veverka, Jan Wang, J. Wang, Ta-Wei Wyslouch, Boleslaw Yang, Mingming Wyslouch, Victoria |
| author_sort | Apyan, Aram |
| collection | MIT |
| description | A first measurement of the top quark spin asymmetry, sensitive to the top quark polarisation, in t-channel single top quark production is presented. It is based on a sample of pp collisions at a centre-of-mass energy of 8 TeV corresponding to an integrated luminosity of 19.7 fb[superscript −1]. A high-purity sample of t-channel single top quark events with an isolated muon is selected. Signal and background components are estimated using a fit to data. A differential cross section measurement, corrected for detector effects, of an angular observable sensitive to the top quark polarisation is performed. The differential distribution is used to extract a top quark spin asymmetry of 0.26 ± 0.03(stat) ± 0.10(syst), which is compatible with a p-value of 4.6% with the standard model prediction of 0.44. |
| first_indexed | 2024-09-23T09:15:22Z |
| format | Article |
| id | mit-1721.1/106884 |
| institution | Massachusetts Institute of Technology |
| language | en_US |
| last_indexed | 2024-09-23T09:15:22Z |
| publishDate | 2017 |
| publisher | Springer-Verlag/SISSA |
| record_format | dspace |
| spelling | mit-1721.1/1068842022-09-30T14:08:34Z Measurement of top quark polarisation in t-channel single top quark production Apyan, Aram Barbieri, Riccardo Baty, Austin Alan Bierwagen, Katharina Brandt, Stephanie Akemi Busza, Wit Cali, Ivan Amos Demiragli, Zeynep Di Matteo, Leonardo Gomez-Ceballos, Guillelmo Goncharov, Maxim Gulhan, Doga Can Iiyama, Yutaro Innocenti, Gian Michele Klute, Markus Kovalskyi, Dmytro Lai, Yue Shi Lee, Yen-Jie Levin, Andrew Michael Luckey Jr, P David Marini, Andrea Carlo McGinn, Christopher Francis Mironov, Camelia Maria Narayanan, Siddharth Madhavan Niu, Xinmei Paus, Christoph M. E. Ralph, Duncan Kelley Roland, Christof E Roland, Gunther M Salfeld-Nebgen, Jakob Maxillian Henry Stephans, George S. F. Sumorok, Konstanty C Varma, Mukund Madhav Velicanu, Dragos Alexandru Veverka, Jan Wang, J. Wang, Ta-Wei Wyslouch, Boleslaw Yang, Mingming Wyslouch, Victoria Massachusetts Institute of Technology. Department of Physics Massachusetts Institute of Technology. Laboratory for Nuclear Science Apyan, Aram Barbieri, Riccardo Baty, Austin Alan Bierwagen, Katharina Brandt, Stephanie Akemi Busza, Wit Cali, Ivan Amos Demiragli, Zeynep Di Matteo, Leonardo Gomez-Ceballos, Guillelmo Goncharov, Maxim Gulhan, Doga Can Iiyama, Yutaro Innocenti, Gian Michele Klute, Markus Kovalskyi, Dmytro Lai, Yue Shi Lee, Yen-Jie Levin, Andrew Michael Luckey Jr, P David Marini, Andrea Carlo McGinn, Christopher Francis Mironov, Camelia Maria Narayanan, Siddharth Madhavan Niu, Xinmei Paus, Christoph M. E. Ralph, Duncan Kelley Roland, Christof E Roland, Gunther M Salfeld-Nebgen, Jakob Maxillian Henry Stephans, George S. F. Sumorok, Konstanty C Varma, Mukund Madhav Velicanu, Dragos Alexandru Veverka, Jan Wang, J. Wang, Ta-Wei Wyslouch, Boleslaw Yang, Mingming Wyslouch, Victoria A first measurement of the top quark spin asymmetry, sensitive to the top quark polarisation, in t-channel single top quark production is presented. It is based on a sample of pp collisions at a centre-of-mass energy of 8 TeV corresponding to an integrated luminosity of 19.7 fb[superscript −1]. A high-purity sample of t-channel single top quark events with an isolated muon is selected. Signal and background components are estimated using a fit to data. A differential cross section measurement, corrected for detector effects, of an angular observable sensitive to the top quark polarisation is performed. The differential distribution is used to extract a top quark spin asymmetry of 0.26 ± 0.03(stat) ± 0.10(syst), which is compatible with a p-value of 4.6% with the standard model prediction of 0.44. United States. Dept. of Energy National Science Foundation (U.S.) 2017-02-07T17:04:45Z 2017-02-07T17:04:45Z 2016-04 2016-02 Article http://purl.org/eprint/type/JournalArticle 1029-8479 1126-6708 http://hdl.handle.net/1721.1/106884 The CMS collaboration et al. “Measurement of Top Quark Polarisation in T-Channel Single Top Quark Production.” Journal of High Energy Physics 2016.4 (2016): n. pag. https://orcid.org/0000-0002-9418-6656 https://orcid.org/0000-0002-6166-448X https://orcid.org/0000-0001-5310-3466 https://orcid.org/0000-0002-2622-8295 https://orcid.org/0000-0002-8590-2673 https://orcid.org/0000-0002-3831-9071 https://orcid.org/0000-0001-8521-737X https://orcid.org/0000-0001-9236-6621 https://orcid.org/0000-0002-8297-5930 https://orcid.org/0000-0003-4511-0855 https://orcid.org/0000-0002-0869-5631 https://orcid.org/0000-0003-1486-606X https://orcid.org/0000-0003-2593-7767 https://orcid.org/0000-0002-1136-6900 https://orcid.org/0000-0003-2351-0487 https://orcid.org/0000-0003-1281-0193 https://orcid.org/0000-0002-8599-2437 https://orcid.org/0000-0003-2723-3560 https://orcid.org/0000-0001-7842-1591 https://orcid.org/0000-0002-6047-4211 https://orcid.org/0000-0001-8983-2169 https://orcid.org/0000-0003-3879-5622 https://orcid.org/0000-0003-3106-4894 https://orcid.org/0000-0001-8261-8346 https://orcid.org/0000-0002-1260-777X https://orcid.org/0000-0002-0899-7621 https://orcid.org/0000-0003-3681-0649 https://orcid.org/0000-0001-6332-5839 en_US http://dx.doi.org/10.1007/JHEP04(2016)073 Journal of High Energy Physics Creative Commons Attribution 4.0 International License http://creativecommons.org/licenses/by/4.0/ application/pdf Springer-Verlag/SISSA Springer |
| spellingShingle | Apyan, Aram Barbieri, Riccardo Baty, Austin Alan Bierwagen, Katharina Brandt, Stephanie Akemi Busza, Wit Cali, Ivan Amos Demiragli, Zeynep Di Matteo, Leonardo Gomez-Ceballos, Guillelmo Goncharov, Maxim Gulhan, Doga Can Iiyama, Yutaro Innocenti, Gian Michele Klute, Markus Kovalskyi, Dmytro Lai, Yue Shi Lee, Yen-Jie Levin, Andrew Michael Luckey Jr, P David Marini, Andrea Carlo McGinn, Christopher Francis Mironov, Camelia Maria Narayanan, Siddharth Madhavan Niu, Xinmei Paus, Christoph M. E. Ralph, Duncan Kelley Roland, Christof E Roland, Gunther M Salfeld-Nebgen, Jakob Maxillian Henry Stephans, George S. F. Sumorok, Konstanty C Varma, Mukund Madhav Velicanu, Dragos Alexandru Veverka, Jan Wang, J. Wang, Ta-Wei Wyslouch, Boleslaw Yang, Mingming Wyslouch, Victoria Measurement of top quark polarisation in t-channel single top quark production |
| title | Measurement of top quark polarisation in t-channel single top quark production |
| title_full | Measurement of top quark polarisation in t-channel single top quark production |
| title_fullStr | Measurement of top quark polarisation in t-channel single top quark production |
| title_full_unstemmed | Measurement of top quark polarisation in t-channel single top quark production |
| title_short | Measurement of top quark polarisation in t-channel single top quark production |
| title_sort | measurement of top quark polarisation in t channel single top quark production |
| url | http://hdl.handle.net/1721.1/106884 https://orcid.org/0000-0002-9418-6656 https://orcid.org/0000-0002-6166-448X https://orcid.org/0000-0001-5310-3466 https://orcid.org/0000-0002-2622-8295 https://orcid.org/0000-0002-8590-2673 https://orcid.org/0000-0002-3831-9071 https://orcid.org/0000-0001-8521-737X https://orcid.org/0000-0001-9236-6621 https://orcid.org/0000-0002-8297-5930 https://orcid.org/0000-0003-4511-0855 https://orcid.org/0000-0002-0869-5631 https://orcid.org/0000-0003-1486-606X https://orcid.org/0000-0003-2593-7767 https://orcid.org/0000-0002-1136-6900 https://orcid.org/0000-0003-2351-0487 https://orcid.org/0000-0003-1281-0193 https://orcid.org/0000-0002-8599-2437 https://orcid.org/0000-0003-2723-3560 https://orcid.org/0000-0001-7842-1591 https://orcid.org/0000-0002-6047-4211 https://orcid.org/0000-0001-8983-2169 https://orcid.org/0000-0003-3879-5622 https://orcid.org/0000-0003-3106-4894 https://orcid.org/0000-0001-8261-8346 https://orcid.org/0000-0002-1260-777X https://orcid.org/0000-0002-0899-7621 https://orcid.org/0000-0003-3681-0649 https://orcid.org/0000-0001-6332-5839 |
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