Çetin, Serkant Ali2022-11-152022-11-152022-011029-8479https://hdl.handle.net/11411/4675https://doi.org/10.1007/JHEP01(2022)063Abstract: A search for the exotic decay of the Higgs boson (H) into a bb¯ resonance plus missing transverse momentum is described. The search is performed with the ATLAS detector at the Large Hadron Collider using 139 fb?1 of pp collisions at s = 13 TeV. The search targets events from ZH production in an NMSSM scenario where H ? ?~20?~10, with ?~20?a?~10, where a is a light pseudoscalar Higgs boson and ?~1,20 are the two lightest neutralinos. The decay of the a boson into a pair of b-quarks results in a peak in the dijet invariant mass distribution. The final-state signature consists of two leptons, two or more jets, at least one of which is identified as originating from a b-quark, and missing transverse momentum. Observations are consistent with Standard Model expectations and upper limits are set on the product of cross section times branching ratio for a three-dimensional scan of the masses of the ?~20, ?~10 and a boson. [Figure not available: see fulltext.] © 2022, The Author(s).eninfo:eu-repo/semantics/openAccessBeyond Standard ModelHadron-Hadron scattering (experiments)SupersymmetryArticle2-s2.0-8512323992410.1007/JHEP01(2022)063Q2WOS:000743928200001