Options
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
Journal of High Energy Physics
Date Issued
2022-05-01
Author(s)
Tumasyan, A.
Adam, W.
Andrejkovic, J. W.
Bergauer, T.
Chatterjee, S.
Damanakis, K.
Dragicevic, M.
Escalante Del Valle, A.
Frühwirth, R.
Jeitler, M.
Krammer, N.
Lechner, L.
Liko, D.
Mikulec, I.
Paulitsch, P.
Pitters, F. M.
Schieck, J.
Schöfbeck, R.
Schwarz, D.
Templ, S.
Waltenberger, W.
Wulz, C. E.
Chekhovsky, V.
Litomin, A.
Makarenko, V.
Darwish, M. R.
De Wolf, E. A.
Janssen, T.
Kello, T.
Lelek, A.
Rejeb Sfar, H.
Van Mechelen, P.
Van Putte, S.
Van Remortel, N.
Blekman, F.
Bols, E. S.
D’Hondt, J.
Delcourt, M.
El Faham, H.
Lowette, S.
Moortgat, S.
Morton, A.
Müller, D.
Sahasransu, A. R.
Tavernier, S.
Van Doninck, W.
Beghin, D.
Bilin, B.
Clerbaux, B.
De Lentdecker, G.
Favart, L.
Kalsi, A. K.
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, I. S.
Giammanco, A.
Jaffel, K.
Jain, Sa
Lemaitre, V.
Mondal, K.
Prisciandaro, J.
Taliercio, A.
Teklishyn, M.
Tran, T. T.
Vischia, P.
Wertz, S.
Alves, G. A.
Hensel, C.
Moraes, A.
Rebello Teles, P.
Abstract
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→ b b ¯ WW∗→ b b ¯ ℓvq q ¯ ′ and the dilepton decay channels HH→ b b ¯ WW∗→ b b ¯ ℓvℓv and HH→ b b ¯ ττ→ b b ¯ 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 → b b ¯ 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. [Figure not available: see fulltext.]
Subjects