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Title: | Search for heavy resonances decaying to a pair of Lorentz-boosted Higgs bosons in final states with leptons and a bottom quark pair at √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 Litomin, A Makarenko, V Darwish, MR De Wolf, EA Janssen, T Kello, T Lelek, A Rejeb Sfar, H Van Mechelen, P Van Putte, S Van Remortel, N Blekman, F Bols, ES D’Hondt, J Delcourt, M El Faham, H Lowette, S Moortgat, S Morton, A Müller, D Sahasransu, AR Tavernier, S Van Doninck, W Beghin, D Bilin, B Clerbaux, B De Lentdecker, G Favart, L Kalsi, AK Lee, K Mahdavikhorrami, M Makarenko, I Moureaux, L 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 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 Mondal, K Prisciandaro, J Taliercio, A Teklishyn, M Tran, TT Vischia, P Wertz, S Alves, GA Hensel, C Moraes, A Rebello Teles, P Coldham, K Cole, JE Khan, A Kyberd, P Reid, ID Teodorescu, L Zahid, S Lechner, L Liko, D Mikulec, I Paulitsch, P Pitters, FM Schieck, J Schöfbeck, R Schwarz, D Templ, S Waltenberger, W Wulz, CE Chekhovsky, V |
Keywords: | beyond standard model;hadron-hadron scattering;Higgs physics;particle and resonance production |
Issue Date: | 2-Mar-2022 |
Publisher: | Springer Nature on behalf of Sissa Labs |
Citation: | Tumasyan, A. et al. for the benefit of the CMS Collaboration (2022) 'Search for heavy resonances decaying to a pair of Lorentz-boosted Higgs bosons in final states with leptons and a bottom quark pair at √s = 13 TeV', Journal of High Energy Physics, 2022 (5), 5, pp. 1 - 59. doi: 10.1007/JHEP05(2022)005. |
Abstract: | Copyright © CERN, for the benefit of the CMS Collaboration.. A search for new heavy resonances decaying to a pair of Higgs bosons (HH) in proton-proton collisions at a center-of-mass energy of 13 TeV is presented. Data were collected with the CMS detector at the LHC in 2016–2018, corresponding to an integrated luminosity of 138 fb−1. Resonances with a mass between 0.8 and 4.5 TeV are considered using events in which one Higgs boson decays into a bottom quark pair and the other into final states with either one or two charged leptons. Specifically, the single-lepton decay channel HH→bb¯¯¯WW∗→bb¯¯¯ℓvqq¯¯¯′ and the dilepton decay channels HH→bb¯¯¯WW∗→bb¯¯¯ℓvℓv and HH→bb¯¯¯ττ→bb¯¯¯ℓvvℓvv are examined, where ℓ in the final state corresponds to an electron or muon. The signal is extracted using a two-dimensional maximum likelihood fit of the H→bb¯¯¯ jet mass and HH invariant mass distributions. No significant excess above the standard model expectation is observed in data. Model-independent exclusion limits are placed on the product of the cross section and branching fraction for narrow spin-0 and spin-2 massive bosons decaying to HH. The results are also interpreted in the context of radion and bulk graviton production in models with a warped extra spatial dimension. The results provide the most stringent limits to date for X → HH signatures with final-state leptons and at some masses provide the most sensitive limits of all X → HH searches. |
Description: | A preprint version of the article is available at arXiv ePrint: 2112.03161 (https://arxiv.org/abs/2112.03161). |
URI: | https://bura.brunel.ac.uk/handle/2438/26515 |
DOI: | https://doi.org/10.1007/JHEP05(2022)005 |
Other Identifiers: | ORCID iDs: Joanne E. Cole https://orcid.org/0000-0001-5638-7599; Akram Khan https://orcid.org/0000-0002-4597-4402; Paul Kyberd https://orcid.org/0000-0002-7353-7090; Ivan D. Reid https://orcid.org/0000-0002-9235-779X; Liliana Teodorescu https://orcid.org/0000-0002-6974-6201. 5 |
Appears in Collections: | Dept of Electronic and Electrical Engineering Research Papers |
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