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Search for a massive scalar resonance decaying to a light scalar and a Higgs boson in the four b quarks final state with boosted topology

The CMS collaboration
Tumasyan, Armen , Adam, Wolfgang , Andrejkovic, Janik Walter , Bergauer, Thomas , Chatterjee, Suman , Damanakis, Konstantinos , Dragicevic, Marko , Escalante Del Valle, Alberto , Fruehwirth, Rudolf , Jeitler, Manfred
Phys.Lett.B 842 (2023) 137392, 2023.
https://doi.org/10.17182/hepdata.115995.v2

Abstract (data abstract)
We search for new massive scalar particles X and Y through the resonant production process $X \rightarrow YH \rightarrow b\bar{b} b\bar{b}$, where H is the standard model Higgs boson. Data from CERN LHC proton-proton collisions are used, collected at a centre-of-mass energy of 13 TeV in 2016--2018 and corresponding to an integrated luminosity of 138 $\mathrm{fb}^{-1}$. The search is performed in mass ranges of 0.9--4 TeV for X and 60--600 GeV for Y, where both Y and H are reconstructed as Lorentz-boosted single large-area jets. The results are interpreted in the context of the next-to-minimal supersymmetric standard model and also in an extension of the standard model with two additional singlet scalar fields. The 95% confidence level upper limits for the production cross section very between 0.1 and 150 fb depending on the X and Y masses, and represent a significant improvement over results from previous searches.

  • Figure 2a

    Data from Figure 2 (left)

    10.17182/hepdata.115995.v2/t1

    The $M_J^Y$ distribution for the number of observed events (black markers) compared with the estimated backgrounds (filled histograms) and their...

  • Figure 2b

    Data from Figure 2 (right)

    10.17182/hepdata.115995.v2/t2

    The $M_{JJ}$ distribution for the number of observed events (black markers) compared with the estimated backgrounds (filled histograms) and their...

  • Figure 3

    Data from Figure 3

    10.17182/hepdata.115995.v2/t3

    The soft-drop mass distribution of the top quark candidate jets in the 2018 jets+lepton category, in the tight ParticleNet region,...

  • Figure 4

    Data from Figure 4

    10.17182/hepdata.115995.v2/t4

    The 95% confidence level expected and observed upper limits on $\sigma$(pp->X->YH->4b) for different values of $M_X$ and $M_Y$. The areas...

Version 2 modifications: Add new Figure 4 added during journal peer-review process.

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