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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, Skolan för teknikvetenskap (SCI), Fysik, Partikel- och astropartikelfysik.
KTH, Skolan för teknikvetenskap (SCI), Fysik, Partikel- och astropartikelfysik.
KTH, Skolan för teknikvetenskap (SCI), Fysik, Partikel- och astropartikelfysik.ORCID-id: 0000-0002-8913-0981
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Antal upphovsmän: 28652017 (Engelska)Ingår i: Physics Letters B, ISSN 0370-2693, E-ISSN 1873-2445, Vol. 765, s. 11-31Artikel i tidskrift (Refereegranskat) 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.

Ort, förlag, år, upplaga, sidor
Elsevier, 2017. Vol. 765, s. 11-31
Nationell ämneskategori
Fysik
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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, id: diva2:1080722
Anmärkning

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

Tillgänglig från: 2017-03-10 Skapad: 2017-03-10 Senast uppdaterad: 2017-11-29Bibliografiskt granskad

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