Compact Muon Solenoid
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| CMS-PAS-HIG-20-012 | ||
| Search for a new heavy scalar boson decaying into a Higgs boson and a new scalar particle in the four b-quarks final state using proton-proton collisions at $ \sqrt{s}= $ 13 TeV | ||
| CMS Collaboration | ||
| 25 October 2024 | ||
| Abstract: A search for a massive scalar resonance, X, decaying into a Higgs boson and a scalar, Y, in proton-proton collisions at a centre-of-mass energy of 13 TeV is presented. The search is performed using a data sample corresponding to an integrated luminosity of 138 fb$^{-1}$ collected by the CMS detector. The four b-quark final state is used to probe the possible phenomenon beyond the standard model, $ \text{X} \rightarrow \text{Y} \text{H} $, in which both the Y and the Higgs boson are reconstructed from a pair of b quarks. A range of masses from 400 GeV to 1.6 TeV for the resonance X and from 60 GeV to 1.4 TeV for the scalar Y are investigated. The observations are in agreement with the background-only hypothesis. The largest excess, with a local (global) significance of 4.1 (2.8) standard deviations, is observed for hypothetical X and Y masses of 700 GeV and 400 GeV, respectively. The 95% confidence level limits of the production cross section times branching ratio are presented for all signal mass hypotheses in the range of the search. Results are interpreted within the NMSSM scenario. | ||
| Links: CDS record (PDF) ; CADI line (restricted) ; | ||
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Compact Muon Solenoid LHC, CERN |
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