Search for CP violation using tt¯ events in the lepton+jets channel in pp collisions at √<i>s</i> = 13 TeV

Tumasyan, A; Adam, W; Andrejkovic, JW; Bergauer, T; Chatterjee, S; Damanakis, K; Dragicevic, M; Escalante Del Valle, A; Frühwirth, R; Jeitler, M; Krammer, N; Bruno, G; Bury, F; Caputo, C; David, P; Delaere, C; Donertas, IS; Giammanco, A; Jaffel, K; Jain, S; Lemaitre, V; Mondal, K; Teodorescu, L; Prisciandaro, J; Taliercio, A; Teklishyn, M; Tran, TT; Reid, ID; Vischia, P; Wertz, S; Alves, GA; Kyberd, P; Hensel, C; Moraes, A; Khan, A; Rebello Teles, P; Cole, JE; Coldham, K; Lechner, L; Liko, D; Mikulec, I; Paulitsch, P; Pitters, FM; Schieck, J; Schöfbeck, R; Schwarz, D; Templ, S; Waltenberger, W; Wulz, CE; Darwish, MR; De Wolf, EA; Janssen, T; Kello, T; Lelek, A; Rejeb Sfar, H; Van Mechelen, P; Van Putte, S; Van Remortel, N; Bols, ES; D’Hondt, J; De Moor, A; Delcourt, M; El Faham, H; Lowette, S; Moortgat, S; Morton, A; Müller, D; Sahasransu, AR; Tavernier, S; Van Doninck, W; Vannerom, D; Beghin, D; Bilin, B; Clerbaux, B; De Lentdecker, G; Favart, L; Kalsi, AK; Lee, K; Mahdavikhorrami, M; Makarenko, I; Moureaux, L; Paredes, S; Pétré, L; Popov, A; Postiau, N; Starling, E; Thomas, L; Vanden Bemden, M; Vander Velde, C; Vanlaer, P; Cornelis, T; Dobur, D; Knolle, J; Lambrecht, L; Mestdach, G; Niedziela, M; Rendón, C; Roskas, C; Samalan, A; Skovpen, K; Tytgat, M; Van Den Bossche, N; Vermassen, B; Wezenbeek, L; Benecke, A; Bethani, A

Please use this identifier to cite or link to this item: http://bura.brunel.ac.uk/handle/2438/28903

Title:	Search for CP violation using tt¯ events in the lepton+jets channel in pp collisions at √<i>s</i> = 13 TeV
Other Titles:	Search for CP violation using $\mathrm{t\bar{t}}$ events in the lepton+jets channel in pp collisions at $\sqrt{s}$ = 13 TeV
Authors:	Tumasyan, A Adam, W Andrejkovic, JW Bergauer, T Chatterjee, S Damanakis, K Dragicevic, M Escalante Del Valle, A Frühwirth, R Jeitler, M Krammer, N Bruno, G Bury, F Caputo, C David, P Delaere, C Donertas, IS Giammanco, A Jaffel, K Jain, S Lemaitre, V Mondal, K Teodorescu, L Prisciandaro, J Taliercio, A Teklishyn, M Tran, TT Reid, ID Vischia, P Wertz, S Alves, GA Kyberd, P Hensel, C Moraes, A Khan, A Rebello Teles, P Cole, JE Coldham, K Lechner, L Liko, D Mikulec, I Paulitsch, P Pitters, FM Schieck, J Schöfbeck, R Schwarz, D Templ, S Waltenberger, W Wulz, CE Darwish, MR De Wolf, EA Janssen, T Kello, T Lelek, A Rejeb Sfar, H Van Mechelen, P Van Putte, S Van Remortel, N Bols, ES D’Hondt, J De Moor, A Delcourt, M El Faham, H Lowette, S Moortgat, S Morton, A Müller, D Sahasransu, AR Tavernier, S Van Doninck, W Vannerom, D Beghin, D Bilin, B Clerbaux, B De Lentdecker, G Favart, L Kalsi, AK Lee, K Mahdavikhorrami, M Makarenko, I Moureaux, L Paredes, S Pétré, L Popov, A Postiau, N Starling, E Thomas, L Vanden Bemden, M Vander Velde, C Vanlaer, P Cornelis, T Dobur, D Knolle, J Lambrecht, L Mestdach, G Niedziela, M Rendón, C Roskas, C Samalan, A Skovpen, K Tytgat, M Van Den Bossche, N Vermassen, B Wezenbeek, L Benecke, A Bethani, A
Keywords:	CP violation;hadron-hadron scattering;top physics
Issue Date:	14-Jun-2023
Publisher:	Springer Nature
Citation:	Tumasyan, A. et al for the benefit of the CMS Collaboration (2023) 'Search for CP violation using tt¯ events in the lepton+jets channel in pp collisions at √<i>s</i> = 13 TeV', Journal of High Energy Physics, 2023 (6), 81, pp. 1 - 46. doi: 10.1007/JHEP06(2023)081.
Abstract:	Results are presented on a search for CP violation in the production and decay of top quark-antiquark pairs in the lepton+jets channel. The search is based on data from proton-proton collisions at √s = 13 TeV, collected with the CMS detector, corresponding to an integrated luminosity of 138 fb^{−1}. Possible CP violation effects are evaluated by measuring uncorrected asymmetries in observables constructed from linearly independent four-momentum vectors of the final-state particles. The dimensionless chromoelectric dipole moment of the top quark obtained from the observed asymmetries is measured to be 0.04 ± 0.10 (stat) ± 0.07 (syst), and the asymmetries exhibit no evidence for CP-violating effects, consistent with expectations from the standard model.
Description:	A preprint version of the article is available at arXiv:2205.02314v2 [hep-ex], https://arxiv.org/abs/2205.02314v2 . Comments: Replaced with the published version. Added the journal reference and the DOI. All the figures and tables can be found at https://cms-results.web.cern.ch/cms-results/public-results/publications/TOP-20-005 (CMS Public Pages). Report number: CMS-TOP-20-005, CERN-EP-2022-051.
URI:	https://bura.brunel.ac.uk/handle/2438/28903
DOI:	https://doi.org/10.1007/JHEP06(2023)081
ISSN:	1126-6708
Other Identifiers:	ORCiD: A. Tumasyan https://orcid.org/0009-0000-0684-6742 ORCiD: Joanne E. Cole https://orcid.org/0000-0001-5638-7599 ORCiD: Akram Khan https://orcid.org/0000-0002-4597-4402 ORCiD: Paul Kyberd https://orcid.org/0000-0002-7353-7090 ORCiD: Ivan D. Reid https://orcid.org/0000-0002-9235-779X ORCiD: Liliana Teodorescu https://orcid.org/0000-0002-6974-6201 CMS-TOP-20-005 CERN-EP-2022-051 arXiv:2205.02314v2 81
Appears in Collections:	Dept of Electronic and Electrical Engineering Research Papers

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