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Scientific article
Open access
English

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

ContributorsATLAS Collaboration
Published inPhysics letters. B, vol. 765, p. 11-31
Collection
  • Open Access - SCOAP3
Publication date2017
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 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′ 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.

Citation (ISO format)
ATLAS Collaboration. 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. In: Physics letters. B, 2017, vol. 765, p. 11–31. doi: 10.1016/j.physletb.2016.11.035
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Article (Published version)
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ISSN of the journal0370-2693
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