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http://bura.brunel.ac.uk/handle/2438/28773| Title: | Search for CP violating top quark couplings in pp collisions at √s = 13 TeV |
| Authors: | Tumasyan, A Adam, W Bergauer, T Dragicevic, M Escalante Del Valle, A Frühwirth, R Jeitler, M Krammer, N Lechner, L Liko, D Mikulec, I Van Mulders, P Beghin, D Bilin, B Clerbaux, B De Lentdecker, G Dorney, B Favart, L Grebenyuk, A Kalsi, AK Lee, K Makarenko, I Moureaux, L Pétré, L Zahid, S Popov, A Postiau, N Starling, E Thomas, L Vander Velde, C Vanlaer, P Vannerom, D Wezenbeek, L Cornelis, T Dobur, D Gruchala, M Khvastunov, I Mestdach, G Niedziela, M Roskas, C Skovpen, K Tytgat, M Verbeke, W Vermassen, B Vit, M Bethani, A Bruno, G Bury, F Caputo, C David, P Delaere, C Delcourt, M Donertas, IS Giammanco, A Lemaitre, V Mondal, K Prisciandaro, J Taliercio, A Teklishyn, M Vischia, P Teodorescu, L Wertz, S Wuyckens, S Alves, GA Hensel, C Reid, ID Moraes, A Aldá Júnior, WL Belchior Batista Das Chagas, E Mackay, CK Brandao Malbouisson, H Carvalho, W Kyberd, P Chinellato, J Khan, A Cole, JE Pitters, FM Schieck, J Schöfbeck, R Spanring, M Templ, S Waltenberger, W Wulz, CE Zarucki, M Darwish, MR De Wolf, EA Janssen, T Kello, T Lelek, A Pieters, M Rejeb Sfar, H Van Mechelen, P Van Putte, S Van Remortel, N Blekman, F Bols, ES D'hondt, J De Clercq, J Lontkovskyi, D Lowette, S Marchesini, I Moortgat, S Morton, A Müller, D Sahasransu, AR Tavernier, S Van Doninck, W |
| Keywords: | CP violation;hadron-hadron scattering;top physics |
| Issue Date: | 4-Jul-2023 |
| Publisher: | Springer Nature on behalf of SISSA |
| Citation: | Tumasyan, A. et al for the benefit of The CMS collaboration (2023). 'Search for CP violating top quark couplings in pp collisions at √s = 13 TeV' iJournal of High Energy Physics (JHEP), 2023 (7), 23, pp. 1 - 44. doi: 10.1007/JHEP07(2023)023. |
| Abstract: | Results are presented from a search for CP violation in top quark pair production, using proton-proton collisions at a center-of-mass energy of 13 TeV. The data used for this analysis consist of final states with two charged leptons collected by the CMS experiment, and correspond to an integrated luminosity of 35.9 fb−1. The search uses two observables, O1 and O3, which are Lorentz scalars. The observable O1 is constructed from the four-momenta of the charged leptons and the reconstructed top quarks, while O3 consists of the four-momenta of the charged leptons and the b quarks originating from the top quarks. Asymmetries in these observables are sensitive to CP violation, and their measurement is used to determine the chromoelectric dipole moment of the top quark. The results are consistent with the expectation from the standard model. [Figure not available: see fulltext.]. |
| Description: | A preprint version of the article is available at arXiv:2205.07434v2 [hep-ex], https://arxiv.org/abs/2205.07434. It has not been certified by peer review. |
| URI: | https://bura.brunel.ac.uk/handle/2438/28773 |
| DOI: | https://doi.org/10.1007/JHEP07(2023)023 |
| 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: Catherine Mackay https://orcid.org/0000-0003-4252-6740 ORCiD: Ivan D. Reid https://orcid.org/0000-0002-9235-779X ORCiD: Liliana Teodorescu https://orcid.org/0000-0002-6974-6201 23 |
| Appears in Collections: | Dept of Electronic and Electrical Engineering Research Papers |
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| File | Description | Size | Format | |
|---|---|---|---|---|
| FullText.pdf | Copyright © CERN, for the benefit of the CMS Collaboration 2023. Rights and permissions: Open Access. This article is distributed under the terms of the Creative Commons Attribution License (CC-BY 4.0), which permits any use, distribution and reproduction in any medium, provided the original author(s) and source are credited. | 1.22 MB | Adobe PDF | View/Open |
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