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Title: | Search for Higgs boson pairs decaying to WW<sup>*</sup>WW<sup>*</sup>, WW<sup>*</sup>ττ, and ττττ in proton-proton collisions at √<i>s</i> = 13 TeV |
Other Titles: | Search for Higgs boson pairs decaying to WW*WW*, WW*$ττ$, and $ττττ$ in proton-proton 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 Jeitler, M Krammer, N Lechner, L Teodorescu, L Wertz, S Alves, GA Coelho, E Hensel, C Reid, ID Moraes, A Rebello Teles, P Aldá Júnior, WL Kyberd, P Alves Gallo Pereira, M Barroso Ferreira Filho, M Khan, A Brandao Malbouisson, H Cole, JE Coldham, K 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 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 Clerbaux, B De Lentdecker, G Favart, L Jaramillo, J Lee, K Mahdavikhorrami, M Makarenko, I Malara, A Paredes, S Pétré, L Popov, A Postiau, N Starling, E Thomas, L Vanden Bemden, M Vander Velde, C Vanlaer, P 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 Bruno, G Bury, F Caputo, C David, P Delaere, C Donertas, IS Giammanco, A Jaffel, K Jain, S Lemaitre, V Zahid, S Mondal, K Prisciandaro, J Taliercio, A Tran, TT Vischia, P |
Keywords: | hadron-hadron scattering;Higgs physics |
Issue Date: | 12-Jul-2023 |
Publisher: | Springer Nature on behalf of SISSA |
Citation: | Tumasyan, A. et al. for the benefit of the CMS Collaboration (2023) 'Search for Higgs boson pairs decaying to WW<sup>*</sup>WW<sup>*</sup>, WW<sup>*</sup>ττ, and ττττ in proton-proton collisions at √<i>s</i> = 13 TeV', Journal of High Energy Physics, 2023 (7), 95, pp. 1 - 64. doi: 10.1007/JHEP07(2023)095. |
Abstract: | The results of a search for Higgs boson pair (HH) production in the WW*WW*, WW*ττ, and ττττ decay modes are presented. The search uses 138 fb^{−1} of proton-proton collision data recorded by the CMS experiment at the LHC at a center-of-mass energy of 13 TeV from 2016 to 2018. Analyzed events contain two, three, or four reconstructed leptons, including electrons, muons, and hadronically decaying tau leptons. No evidence for a signal is found in the data. Upper limits are set on the cross section for nonresonant HH production, as well as resonant production in which a new heavy particle decays to a pair of Higgs bosons. For nonresonant production, the observed (expected) upper limit on the cross section at 95% confidence level (CL) is 21.3 (19.4) times the standard model (SM) prediction. The observed (expected) ratio of the trilinear Higgs boson self-coupling to its value in the SM is constrained to be within the interval −6.9 to 11.1 (−6.9 to 11.7) at 95% CL, and limits are set on a variety of new-physics models using an effective field theory approach. The observed (expected) limits on the cross section for resonant HH production range from 0.18 to 0.90 (0.08 to 1.06) pb at 95% CL for new heavy-particle masses in the range 250–1000 GeV. |
Description: | A preprint version of the article is available at arXiv:2206.10268v2 [hep-ex], https://arxiv.org/abs/2206.10268v2 . 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/HIG-21-002 (CMS Public Pages). Report number: CMS-HIG-21-002, CERN-EP-2022-113. |
URI: | https://bura.brunel.ac.uk/handle/2438/28884 |
DOI: | https://doi.org/10.1007/JHEP07(2023)095 |
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-HIG-21-002 CERN-EP-2022-113 arXiv:2206.10268v2 [hep-ex] 95 |
Appears in Collections: | Dept of Electronic and Electrical Engineering Research Papers |
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