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

The ATLAS Collaboration

doi:10.1016/j.physletb.2016.11.035

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

The ATLAS Collaboration

Department of Physics

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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 View the MathML source 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.

Original language	English
Pages (from-to)	11–31
Number of pages	21
Journal	Physics Letters B
Volume	765
Early online date	24 Nov 2016
DOIs	https://doi.org/10.1016/j.physletb.2016.11.035
Publication status	Published - 10 Feb 2017

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Cite this

@article{574666eec8c344c484ac6e4ccb2871a5,

title = "Search for dark matter in association with a Higgs boson decaying to b-quarks in pp collisions at √s=13TeV with the ATLAS detector",

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 View the MathML source 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.",

author = "{The ATLAS Collaboration}",

year = "2017",

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day = "10",

doi = "10.1016/j.physletb.2016.11.035",

language = "English",

volume = "765",

pages = "11–31",

journal = "Physics Letters B",

issn = "0370-2693",

publisher = "Elsevier",

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TY - JOUR

T1 - Search for dark matter in association with a Higgs boson decaying to b-quarks in pp collisions at √s=13TeV with the ATLAS detector

AU - The ATLAS Collaboration

PY - 2017/2/10

Y1 - 2017/2/10

N2 - 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 View the MathML source 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.

AB - 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 View the MathML source 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.

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DO - 10.1016/j.physletb.2016.11.035

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JO - Physics Letters B

JF - Physics Letters B

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