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http://bura.brunel.ac.uk/handle/2438/29546| Title: | Search for ZZ and ZH production in the bb̅bb̅ final state using proton-proton collisions at √s = 13TeV |
| Authors: | Hayrapetyan, A Tumasyan, A Adam, W Andrejkovic, JW Bergauer, T Chatterjee, S Damanakis, K Dragicevic, M Hussain, PS Jeitler, M Krammer, N Li, A Liko, D Mikulec, I Schieck, J Schöfbeck, R Schwarz, D Sonawane, M Templ, S Waltenberger, W Wulz, CE Darwish, MR Janssen, T Van Mechelen, P Bols, ES D’Hondt, J Dansana, S De Moor, A Delcourt, M Lowette, S Makarenko, I Müller, D Tavernier, S Tytgat, M Van Onsem, GP Van Putte, S Vannerom, D Clerbaux, B Das, AK De Lentdecker, G Evard, H Favart, L Gianneios, P Hohov, D Jaramillo, J Khalilzadeh, A Khan, FA Lee, K Mahdavikhorrami, M Malara, A Paredes, S Thomas, L Vanden Bemden, M Vander Velde, C Vanlaer, P De Coen, M Dobur, D Hong, Y Knolle, J Lambrecht, L Mestdach, G Amarilo, KM Rendón, C Samalan, A Skovpen, K Van Den Bossche, N van der Linden, J Wezenbeek, L Benecke, A Bethani, A Bruno, G Caputo, C Delaere, C Donertas, IS Giammanco, A Jain, S Lemaitre, V Lidrych, J Mastrapasqua, P Tran, TT Wertz, S Alves, GA Coelho, E Hensel, C De Oliveira, TM Moraes, A Teles, PR Soeiro, M Júnior, WLA Pereira, MAG Filho, MBF Malbouisson, HB Carvalho, W Chinellato, J Da Costa, EM Da Silveira, GG De Jesus Damiao, D De Souza, SF De Souza, RG Martins, J |
| Issue Date: | 19-Jul-2024 |
| Publisher: | Springer Open |
| Citation: | CMS Collaboration (2024). ‘Search for ZZ and ZH production in the bb̅bb̅ final state using proton-proton collisions at √s = 13TeV’, The European Physical Journal C, Vol. 84 (7), pp. 1 - 33. doi: https://doi.org/10.1140/epjc/s10052-024-13021-z. |
| Abstract: | A search for ZZ and ZH production in the bb̅bb̅ final state is presented, where H is the standard model (SM) Higgs boson. The search uses an event sample of proton-proton collisions corresponding to an integrated luminosity of 133fb−1 collected at a center-of-mass energy of 13TeV with the CMS detector at the CERN LHC. The analysis introduces several novel techniques for deriving and validating a multi-dimensional background model based on control samples in data. A multiclass multivariate classifier customized for the bb̅bb̅ final state is developed to derive the background model and extract the signal. The data are found to be consistent, within uncertainties, with the SM predictions. The observed (expected) upper limits at 95% confidence level are found to be 3.8 (3.8) and 5.0 (2.9) times the SM prediction for the ZZ and ZH production cross sections, respectively. |
| Description: | A preprint version of the article is available at arXiv - https://arxiv.org/abs/2403.20241 |
| URI: | http://bura.brunel.ac.uk/handle/2438/29546 |
| DOI: | http://dx.doi.org/10.1140/epjc/s10052-024-13021-z |
| ISSN: | 1434-6044 |
| Other Identifiers: | Article No.: 712 ORCiD: Joanne 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 Reid https://orcid.org/0000-0002-9235-779X |
| Appears in Collections: | Dept of Electronic and Electrical Engineering Research Papers |
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