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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
KTH, School of Engineering Sciences (SCI), Physics, Particle and Astroparticle Physics.
KTH, School of Engineering Sciences (SCI), Physics, Particle and Astroparticle Physics.
KTH, School of Engineering Sciences (SCI), Physics, Particle and Astroparticle Physics.ORCID iD: 0000-0002-8913-0981
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Number of Authors: 2865
2017 (English)In: Physics Letters B, ISSN 0370-2693, E-ISSN 1873-2445, Vol. 765, 11-31 p.Article in journal (Refereed) Published
Abstract [en]

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.

Place, publisher, year, edition, pages
Elsevier, 2017. Vol. 765, 11-31 p.
National Category
Physical Sciences
Identifiers
URN: urn:nbn:se:kth:diva-202991DOI: 10.1016/j.physletb.2016.11.035ISI: 000393627800003Scopus ID: 2-s2.0-85003967191OAI: oai:DiVA.org:kth-202991DiVA: diva2:1080722
Note

Funding details: ANPCyT, Agencia Nacional de Promoción Científica y Tecnológica; Funding details: ANR, Agence Nationale de la Recherche; Funding details: BCKDF, British Columbia Knowledge Development Fund; Funding details: BMWFW, Bundesministerium für Wissenschaft, Forschung und Wirtschaft; Funding details: BNL, Brookhaven National Laboratory; Funding details: Canarie; Funding details: CNPq, Conselho Nacional de Desenvolvimento Científico e Tecnológico; Funding details: CNRST, Centre National pour la Recherche Scientifique et Technique; Funding details: COLCIENCIAS, Departamento Administrativo de Ciencia, Tecnología e Innovación; Funding details: CONICYT, Comisión Nacional de Investigación Científica y Tecnológica; Funding details: DNRF, Danmarks Grundforskningsfond; Funding details: DOE, U.S. Department of Energy; Funding details: ERC, European Research Council; Funding details: FAPESP, Fundação de Amparo à Pesquisa do Estado de São Paulo; Funding details: FQRNT, Fonds Québécois de la Recherche sur la Nature et les Technologies; Funding details: FWF, Austrian Science Fund; Funding details: Generalitat de Catalunya; Funding details: Generalitat Valenciana; Funding details: GNSF, Georgian National Science Foundation; Funding details: GSRT, General Secretariat for Research and Technology; Funding details: Horizon 2020; Funding details: HGF, Human Growth Foundation; Funding details: I-CORE, Israeli Centers for Research Excellence; Funding details: INFN, Instituto Nazionale di Fisica Nucleare; Funding details: ISF, Israel Science Foundation; Funding details: JINR, Joint Institute for Nuclear Research; Funding details: Leverhulme Trust; Funding details: FP7, Seventh Framework Programme; Funding details: GIF, German-Israeli Foundation for Scientific Research and Development; Funding details: MEXT, Ministry of Education, Culture, Sports, Science, and Technology; Funding details: MINECO, Ministerio de Economía y Competitividad; Funding details: MPG, Max-Planck-Gesellschaft; Funding details: MPO, Ministerstvo Průmyslu a Obchodu; Funding details: NSERC, Natural Sciences and Engineering Research Council of Canada; Funding details: NSFC, National Natural Science Foundation of China; Funding details: NWO, Nederlandse Organisatie voor Wetenschappelijk Onderzoek; Funding details: OIT, Ontario Innovation Trust; Funding details: PIC, Poultry Industry Council; Funding details: Royal Society; Funding details: SRC, Semiconductor Research Corporation; Funding details: STFC, Science and Technology Facilities Council; Funding details: TAEK, Türkiye Atom Enerjisi Kurumu; Funding text: The crucial computing support from all WLCG partners is acknowledged gratefully, in particular from CERN, the ATLAS Tier-1 facilities at TRIUMF (Canada), NDGF (Denmark, Norway, Sweden), CC-IN2P3 (France), KIT/GridKA (Germany), INFN-CNAF (Italy), NL-T1 (Netherlands), PIC (Spain), ASGC (Taiwan), RAL (UK) and BNL (USA), the Tier-2 facilities worldwide and large non-WLCG resource providers. Major contributors of computing resources are listed in Ref. [92].

QC 20170310

Available from: 2017-03-10 Created: 2017-03-10 Last updated: 2017-04-07Bibliographically approved

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