Search for dark matter in association with a Higgs boson decaying to <i>b</i>-quarks in <i>pp</i> collisions at √<i>s</i>=13 TeV with the ATLAS detector



Aaboud, M, Aad, G, Abbott, B, Abdallah, J, Abdinov, O, Abeloos, B, Aben, R, AbouZeid, OS, Abraham, NL, Abramowicz, H
et al (show 2853 more authors) (2017) Search for dark matter in association with a Higgs boson decaying to <i>b</i>-quarks in <i>pp</i> collisions at √<i>s</i>=13 TeV with the ATLAS detector. PHYSICS LETTERS B, 765. pp. 11-31.

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Abstract

A search for dark matter pair production in association with a Higgs boson decaying to a pair of bottom quarks is presented, using 3.2 $fb^{-1}$ 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 $b\bar{b}$ 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 $Z'$ gauge boson mediating the interaction between dark matter and the Standard Model as well as a two-Higgs-doublet model containing an additional $Z'$ 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.

Item Type: Article
Additional Information: 37 pages in total, author list starting page 21, 4 figures, 2 tables, final version published by Phys. Lett. B. All figures including auxiliary figures are available at https://atlas.web.cern.ch/Atlas/GROUPS/PHYSICS/PAPERS/EXOT-2015-23/
Uncontrolled Keywords: hep-ex, hep-ex
Depositing User: Symplectic Admin
Date Deposited: 04 Jan 2017 08:47
Last Modified: 11 Oct 2023 20:35
DOI: 10.1016/j.physletb.2016.11.035
Related URLs:
URI: https://livrepository.liverpool.ac.uk/id/eprint/3005073