Franklin, MelissaHuth, JohnMorii, Masahiro2023-06-292017Aaboud, M., G. Aad, B. Abbott, J. Abdallah, O. Abdinov, B. Abeloos, R. Aben, et al. 2017. “Search for Dark Matter in Association with a Higgs Boson Decaying to b-Quarks in Pp Collisions at s=13 TeV with the ATLAS Detector.” Physics Letters B 765 (February): 11–31. doi:10.1016/j.physletb.2016.11.035. http://dx.doi.org/10.1016/j.physletb.2016.11.035.0370-2693https://nrs.harvard.edu/URN-3:HUL.INSTREPOS:37376314A search for dark matter pair production in association with a Higgs boson decaying to a pair of bottom quarks is presented, using 3.2 f b−1 of pp collisions at a centre-of-mass energy of 13 TeV collected by the ATLAS detector at the LHC. The decay of the Higgs boson is reconstructed as a high-momentum bb¯ system with either a pair of small-radius jets, or a single large-radius jet with substructure. The observed data are found to be consistent with the expected backgrounds. Results are interpreted using a simplified model with a Z 0 gauge boson mediating the interaction between dark matter and the Standard Model as well as a two-Higgs-doublet model containing an additional Z 0 boson which decays to a Standard Model Higgs boson and a new pseudoscalar Higgs boson, the latter decaying into a pair of dark matter particles.en-USJournal Article2023-06-2910.1016/j.physletb.2016.11.035