Pontificia Universidad Católica de Chile Pontificia Universidad Católica de Chile
Aad G., Abbott B., Abbott D. C., Abud A. A., Abeling K., Abhayasinghe D. K., Abusleme A. (2022)

Search for exotic decays of the Higgs boson into bb¯¯b¯ and missing transverse momentum in pp collisions at s?s = 13 TeV with the ATLAS detector

Revista : Journal of High Energy Physics
Volumen : 2022
Número : 63
Tipo de publicación : ISI Ir a publicación


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 ? ??02??01, with ??02 ? a??01, where a is a light pseudoscalar Higgs boson and ??01,2 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 ??02, ??01 and a boson.