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

Research output: Contribution to journal › Article › peer-review

81 Downloads (Pure)

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

Access to Document

10.1016/j.physletb.2016.11.035Licence: CC BY

Final ManuscriptFinal published version, 1.51 MBLicence: CC BY

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",

month = feb,

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 B.V.",

}

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.

U2 - 10.1016/j.physletb.2016.11.035

DO - 10.1016/j.physletb.2016.11.035

M3 - Article

SN - 0370-2693

VL - 765

SP - 11

EP - 31

JO - Physics Letters B

JF - Physics Letters B

ER -