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http://bura.brunel.ac.uk/handle/2438/24365| Title: | Observation of tW production in the single-lepton channel in pp collisions at √s = 13 TeV |
| Authors: | Tumasyan, A Adam, W Andrejkovic, JW Bergauer, T Chatterjee, S Dragicevic, M Escalante Del Valle, A Frühwirth, R Jeitler, M Krammer, N Lechner, L Favart, L Grebenyuk, A Kalsi, AK Lee, K Mahdavikhorrami, M Makarenko, I Moureaux, L Pétré, L Popov, A Postiau, N Starling, E Thomas, L Vanden Bemden, M Vander Velde, C Vanlaer, P Vannerom, D Wezenbeek, L Cornelis, T Dobur, D Knolle, J Lambrecht, L Mestdach, G Niedziela, M Roskas, C Samalan, A Skovpen, K Tytgat, M Verbeke, W Vermassen, B Vit, M Bethani, A Bruno, G Bury, F Caputo, C David, P Delaere, C Donertas, IS Giammanco, A Jaffel, K Jain, S Lemaitre, V Mondal, K Prisciandaro, J Taliercio, A Teklishyn, M Tran, TT Vischia, P Wertz, S Alves, GA Coldham, K Cole, JE Khan, A Kyberd, P Reid, ID Teodorescu, L Zahid, S Liko, D Mikulec, I Paulitsch, P Pitters, FM Schieck, J Schöfbeck, R Spanring, M Templ, S Waltenberger, W Wulz, CE Chekhovsky, V Litomin, A Makarenko, V Darwish, MR De Wolf, EA Janssen, X Kello, T Lelek, A Rejeb Sfar, H Van Mechelen, P Van Putte, S Van Remortel, N Blekman, F Bols, ES D’Hondt, J De Clercq, J Delcourt, M El Faham, H Lowette, S Moortgat, S Morton, A Müller, D Sahasransu, AR Tavernier, S Van Doninck, W Van Mulders, P Beghin, D Bilin, B Clerbaux, B De Lentdecker, G |
| Keywords: | hadron-hadron scattering (experiments);Top physics |
| Issue Date: | 15-Nov-2021 |
| Publisher: | Springer Nature on behalf of SISSA |
| Citation: | CMS Collaboration, Tumasyan, A. et al. (2021) 'Observation of tW production in the single-lepton channel in pp collisions at √s = 13 TeV', Journal of High Energy Physics, 2021 (11), 111, pp.1-40. doi: 10.1007/JHEP11(2021)111. |
| Abstract: | Copyright © CERN, for the benefit of the CMS Collaboration. A measurement of the cross section of the associated production of a single top quark and a W boson in final states with a muon or electron and jets in proton-proton collisions at s = 13 TeV is presented. The data correspond to an integrated luminosity of 36 fb−1 collected with the CMS detector at the CERN LHC in 2016. A boosted decision tree is used to separate the tW signal from the dominant tt ¯ background, whilst the subleading W+jets and multijet backgrounds are constrained using data-based estimates. This result is the first observation of the tW process in final states containing a muon or electron and jets, with a significance exceeding 5 standard deviations. The cross section is determined to be 89 ± 4 (stat) ± 12 (syst) pb, consistent with the standard model. [Figure not available: see fulltext.] |
| Description: | A preprint version of the article is available at arXiv (https://arxiv.org/abs/2109.01706). |
| URI: | https://bura.brunel.ac.uk/handle/2438/24365 |
| DOI: | https://doi.org/10.1007/JHEP11(2021)111 |
| ISSN: | 1126-6708 |
| Other Identifiers: | 111 |
| Appears in Collections: | Dept of Electronic and Electrical Engineering Research Papers |
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