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http://bura.brunel.ac.uk/handle/2438/27947| Title: | Search for a vector-like quark T′ → tH via the diphoton decay mode of the Higgs boson in proton-proton collisions at √s = 13 TeV |
| Authors: | Tumasyan, A Adam, W Andrejkovic, JW Bergauer, T Chatterjee, S Damanakis, K Dragicevic, M Escalante Del Valle, A Hussain, PS Jeitler, M Krammer, N Kello, T Rejeb Sfar, H Van Mechelen, P 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 Clerbaux, B De Lentdecker, G Favart, L Hohov, D Jaramillo, J Lee, K Mahdavikhorrami, M Makarenko, I Malara, A Paredes, S Pétré, L Postiau, N Thomas, L Vanden Bemden, M Vander Velde, C Vanlaer, P Dobur, D Knolle, J Lambrecht, L Mestdach, G Rendón, C Samalan, A Skovpen, K Tytgat, M Van Den Bossche, N Vermassen, B Wezenbeek, L Benecke, A Bruno, G Bury, F Caputo, C David, P Delaere, C Donertas, IS Giammanco, A Jaffel, K Jain, S Lemaitre, V Mondal, K Taliercio, A Tran, TT Vischia, P Wertz, S Alves, GA Coelho, E Hensel, C Moraes, A Rebello Teles, P Aldá Júnior, WL Alves Gallo Pereira, M Barroso Ferreira Filho, M Brandao Malbouisson, H Carvalho, W Reid, ID Chinellato, J Da Costa, EM Da Silveira, GG Kyberd, P De Jesus Damiao, D Dos Santos Sousa, V Khan, A Fonseca De Souza, S Cole, JE Coldham, K Lechner, L Liko, D Mikulec, I Paulitsch, P Pitters, FM Schieck, J Schöfbeck, R Schwarz, D Sonawane, M Templ, S Waltenberger, W Wulz, CE Darwish, MR Janssen, T |
| Keywords: | beyond standard model;hadron-hadron scattering;top physics |
| Issue Date: | 11-Sep-2023 |
| Publisher: | Springer Nature on behalf of SISSA. |
| Citation: | Tumasyan, A. et al. for the benefit of the CMS Collaboration (2023) 'Search for a vector-like quark T′ → tH via the diphoton decay mode of the Higgs boson in proton-proton collisions at √s = 13 TeV', Journal of High Energy Physics, 2023 (9), 57, pp. 1 - 40. doi: 10.1007/JHEP09(2023)057. |
| Abstract: | Copyright © 2023 CERN, for the benefit of the CMS Collaboration. A search for the electroweak production of a vector-like quark T′, decaying to a top quark and a Higgs boson is presented. The search is based on a sample of proton-proton collision events recorded at the LHC at √s = 13 TeV, corresponding to an integrated luminosity of 138 fb1. This is the first T′ search that exploits the Higgs boson decay to a pair of photons. For narrow isospin singlet T′ states with masses up to 1.1 TeV, the excellent diphoton invariant mass resolution of 1–2% results in an increased sensitivity compared to previous searches based on the same production mechanism. The electroweak production of a T′ quark with mass up to 960 GeV is excluded at 95% confidence level, assuming a coupling strength κT = 0.25 and a relative decay width Γ/MT′ < 5%. [Figure not available: see fulltext.]. |
| Description: | A preprint version of the article was made available at arXiv, arXiv:2302.12802 [hep-ex]. It was replaced with the published version. All the figures and tables can be found at: https://cms-results.web.cern.ch/cms-results/public-results/publications/B2G-21-007 (CMS Public Pages). Report number: CMS-B2G-21-007, CERN-EP-2022-253. |
| URI: | https://bura.brunel.ac.uk/handle/2438/27947 |
| DOI: | https://doi.org/10.1007/JHEP09(2023)057 |
| ISSN: | 1029-8479 |
| Other Identifiers: | ORCID iD Joanne E. Cole https://orcid.org/0000-0001-5638-7599 ORCID iD: Akram Khan https://orcid.org/0000-0002-4597-4402 ORCID iD: Paul Kyberd https://orcid.org/0000-0002-7353-7090 ORCID iD: Ivan D. Reid https://orcid.org/0000-0002-9235-779X 57 |
| Appears in Collections: | Dept of Electronic and Electrical Engineering Research Papers |
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| File | Description | Size | Format | |
|---|---|---|---|---|
| FullText.pdf | Copyright © 2023 CERN, for the benefit of the CMS Collaboration. 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. | 1.19 MB | Adobe PDF | View/Open |
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