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Search for dark matter produced in association with a single top quark in s√=13 TeV pp collisions with the ATLAS detector

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The ATLAS collaboration (Including: Becker, K., Facini, Gabriel, Harrison, P. F., Jones, E., Martin, T. A., McNicol, Christopher John, Murray, W.J., Spangenberg, Martin and Xia, Ligang). (2021) Search for dark matter produced in association with a single top quark in s√=13 TeV pp collisions with the ATLAS detector. European Physical Journal C, 81 (10). 860. doi:10.1140/epjc/s10052-021-09566-y

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Official URL: https://doi.org/10.1140/epjc/s10052-021-09566-y

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Abstract

This paper presents a search for dark matter in the context of a two-Higgs-doublet model together with an additional pseudoscalar mediator, a, which decays into the dark-matter particles. Processes where the pseudoscalar mediator is produced in association with a single top quark in the 2HDM+a model are explored for the first time at the LHC. Several final states which include either one or two charged leptons (electrons or muons) and a significant amount of missing transverse momentum are considered. The analysis is based on proton–proton collision data collected with the ATLAS experiment at s√=13 TeV during LHC Run 2 (2015–2018), corresponding to an integrated luminosity of 139 fb−1. No significant excess above the Standard Model predictions is found. The results are expressed as 95% confidence-level limits on the parameters of the signal models considered.

Item Type: Journal Article
Subjects: Q Science > QC Physics
Divisions: Faculty of Science > Physics
Library of Congress Subject Headings (LCSH): Quarks, Particles (Nuclear physics), Higgs bosons, Nuclear physics
Journal or Publication Title: European Physical Journal C
Publisher: Springer
ISSN: 1434-6044
Official Date: 1 October 2021
Dates:
DateEvent
1 October 2021Published
23 August 2021Accepted
Volume: 81
Number: 10
Article Number: 860
DOI: 10.1140/epjc/s10052-021-09566-y
Status: Peer Reviewed
Publication Status: Published
Access rights to Published version: Open Access
RIOXX Funder/Project Grant:
Project/Grant IDRIOXX Funder NameFunder ID
UNSPECIFIEDCERNhttp://dx.doi.org/10.13039/100012470
UNSPECIFIEDAgencia Nacional de Promoción Científica y Tecnológicahttp://dx.doi.org/10.13039/501100003074
UNSPECIFIEDYerevan Physics InstituteUNSPECIFIED
UNSPECIFIED[ARC] Australian Research Councilhttp://dx.doi.org/10.13039/501100000923
UNSPECIFIEDBundesministerium für Wissenschaft, Forschung und Wirtschafthttp://dx.doi.org/10.13039/501100003413
UNSPECIFIEDAustrian Science Fundhttp://dx.doi.org/10.13039/501100002428
UNSPECIFIEDAzerbaijan National Academy of SciencesUNSPECIFIED
UNSPECIFIEDScientific Software Technologies CenterUNSPECIFIED
UNSPECIFIEDConselho Nacional de Desenvolvimento Científico e Tecnológicohttp://dx.doi.org/10.13039/501100003593
UNSPECIFIEDFundação Carlos Chagas Filho de Amparo à Pesquisa do Estado do Rio de Janeirohttp://dx.doi.org/10.13039/501100004586
UNSPECIFIED[NSFC] National Natural Science Foundation of Chinahttp://dx.doi.org/10.13039/501100001809
UNSPECIFIED[NRC] National Research Council Canadahttp://dx.doi.org/10.13039/501100000046
UNSPECIFIED[CFI] Canada Foundation for Innovationhttp://dx.doi.org/10.13039/501100000196
UNSPECIFIEDAgencia Nacional de Investigación y DesarrolloUNSPECIFIED
UNSPECIFIED[CAS] Chinese Academy of Scienceshttp://dx.doi.org/10.13039/501100002367
UNSPECIFIEDMinistry of Science and Technology of the People's Republic of Chinahttp://dx.doi.org/10.13039/501100002855
UNSPECIFIED[NSFC] National Natural Science Foundation of Chinahttp://dx.doi.org/10.13039/501100001809
UNSPECIFIEDDepartamento Administrativo de Ciencia, Tecnología e Innovación (COLCIENCIAS)http://dx.doi.org/10.13039/100007637
UNSPECIFIEDMinisterstvo školství, mládeže a tĕlovýchovyUNSPECIFIED
UNSPECIFIEDMinisterstvo průmyslu a obchoduUNSPECIFIED
UNSPECIFIEDDanmarks Grundforskningsfondhttp://dx.doi.org/10.13039/501100001732
UNSPECIFIEDStatens naturvidenskabelige forskningsrådUNSPECIFIED
UNSPECIFIEDVSC CR (Czech Republic)UNSPECIFIED
UNSPECIFIED[IN2P3] Institut national de physique nucléaire et de physique des particuleshttp://viaf.org/viaf/137207166
UNSPECIFIED[CNRS] Centre National de la Recherche Scientifiquehttp://dx.doi.org/10.13039/501100004794
UNSPECIFIEDCEA Fundamental Research DivisionUNSPECIFIED
UNSPECIFIEDInstitute of Research into the Fundamental Laws of the Universe (IRFU)UNSPECIFIED
UNSPECIFIEDShota Rustaveli National Science Foundationhttp://dx.doi.org/10.13039/501100004801
UNSPECIFIEDBundesministerium für Bildung und Forschunghttp://dx.doi.org/10.13039/501100002347
UNSPECIFIEDHelmholtz-Gemeinschafthttp://dx.doi.org/10.13039/501100001656
UNSPECIFIEDMax-Planck-Gesellschafthttp://dx.doi.org/10.13039/501100004189
UNSPECIFIEDGeneral Secretariat for Research and Technologyhttp://dx.doi.org/10.13039/501100003448
UNSPECIFIEDResearch Grants Council, University Grants Committeehttp://dx.doi.org/10.13039/501100002920
UNSPECIFIEDSpecial Administrative Regions (SAR)UNSPECIFIED
UNSPECIFIEDIsrael Science Foundationhttp://dx.doi.org/10.13039/501100003977
UNSPECIFIEDNella and Leon Benoziyo Center for Neurological Diseases, Weizmann Institute of Sciencehttp://dx.doi.org/10.13039/501100003941
UNSPECIFIED[INFN] Instituto Nazionale di Fisica Nuclearehttp://dx.doi.org/10.13039/501100004007
UNSPECIFIED[MEXT] Ministry of Education, Culture, Sports, Science and Technologyhttp://dx.doi.org/10.13039/501100001700
UNSPECIFIED[JSPS] Japan Society for the Promotion of Sciencehttp://dx.doi.org/10.13039/501100001691
UNSPECIFIEDCentre National pour la Recherche Scientifique et Techniquehttp://dx.doi.org/10.13039/501100006319
UNSPECIFIED[NWO] Nederlandse Organisatie voor Wetenschappelijk Onderzoekhttp://dx.doi.org/10.13039/501100003246
UNSPECIFIEDNorges Forskningsrådhttp://dx.doi.org/10.13039/501100005416
UNSPECIFIEDMinisterstwo Nauki i Szkolnictwa Wyższegohttp://dx.doi.org/10.13039/501100004569
UNSPECIFIEDNarodowe Centrum Naukihttp://dx.doi.org/10.13039/501100004281
UNSPECIFIEDFundação para a Ciência e a Tecnologiahttp://dx.doi.org/10.13039/501100001871
UNSPECIFIEDMinisterul Educației, Cercetării și TineretuluiUNSPECIFIED
UNSPECIFIEDInstitutul de Fizică Atomicăhttp://viaf.org/viaf/154740159
UNSPECIFIED[MES] Ministry of Education and Science of the Russian Federationhttp://dx.doi.org/10.13039/501100003443
UNSPECIFIEDJoint Institute for Nuclear Researchhttp://dx.doi.org/10.13039/501100003822
UNSPECIFIEDNational Research Center Kurchatov InstituteUNSPECIFIED
UNSPECIFIEDMinistarstvo Prosvete, Nauke i Tehnološkog Razvojahttp://dx.doi.org/10.13039/501100004564
UNSPECIFIEDJavna Agencija za Raziskovalno Dejavnost RShttp://dx.doi.org/10.13039/501100004329
UNSPECIFIEDMinistrstvo za Izobraževanje, Znanost in Športhttp://dx.doi.org/10.13039/501100005989
UNSPECIFIEDDepartment of Science and Technologyhttp://dx.doi.org/10.13039/501100010218
UNSPECIFIEDNational Research Foundation UNSPECIFIED
UNSPECIFIEDMinisterio de Ciencia e InnovaciónUNSPECIFIED
UNSPECIFIEDStockholm Resilience CentreUNSPECIFIED
UNSPECIFIEDKnut och Alice Wallenbergs Stiftelsehttp://dx.doi.org/10.13039/501100004063
UNSPECIFIED[SERI] Staatssekretariat für Bildung, Forschung und Innovationhttp://dx.doi.org/10.13039/501100007352
UNSPECIFIED[SNSF] Schweizerischer Nationalfonds zur Förderung der Wissenschaftlichen Forschunghttp://dx.doi.org/10.13039/501100001711
UNSPECIFIEDCantons of Bern UNSPECIFIED
UNSPECIFIEDCantons of GenevaUNSPECIFIED
UNSPECIFIEDMinistry of Science and Technology, Taiwanhttp://dx.doi.org/10.13039/501100004663
UNSPECIFIEDTürkiye Atom Enerjisi Kurumuhttp://viaf.org/viaf/135144877
UNSPECIFIED[STFC] Science and Technology Facilities Councilhttp://dx.doi.org/10.13039/501100000271
UNSPECIFIED[DOE] U.S. Department of Energyhttp://dx.doi.org/10.13039/100000015
UNSPECIFIEDNational Science Foundationhttp://dx.doi.org/10.13039/501100008982
UNSPECIFIEDBritish Columbia Knowledge Development Fundhttp://dx.doi.org/10.13039/501100007711
UNSPECIFIEDCanariehttp://dx.doi.org/10.13039/100008313
UNSPECIFIEDCanada Research Chairshttp://dx.doi.org/10.13039/501100001804
UNSPECIFIEDCompute Canadahttp://dx.doi.org/10.13039/100013020
UNSPECIFIEDBeijing Municipal Science and Technology Commissionhttp://dx.doi.org/10.13039/501100009592
UNSPECIFIEDInstitute for Data ValorizationUNSPECIFIED
UNSPECIFIEDEuropean Cooperation in Science and Technologyhttp://dx.doi.org/10.13039/501100000921
UNSPECIFIED[ERDF] European Regional Development Fundhttp://dx.doi.org/10.13039/501100008530
UNSPECIFIED[ERC] Horizon 2020 Framework Programmehttp://dx.doi.org/10.13039/100010661
UNSPECIFIEDH2020 Marie Skłodowska-Curie Actionshttp://dx.doi.org/10.13039/100010665
UNSPECIFIED[ANR] Agence Nationale de la Recherchehttp://dx.doi.org/10.13039/501100001665
UNSPECIFIED[DFG] Deutsche Forschungsgemeinschafthttp://dx.doi.org/10.13039/501100001659
UNSPECIFIEDAmerican Friends of the Alexander von Humboldt Foundationhttp://dx.doi.org/10.13039/100003579
UNSPECIFIEDEuropean Social Fundhttp://dx.doi.org/10.13039/501100004895
National Strategic Reference Framework (NSRF)European Commissionhttp://dx.doi.org/10.13039/501100000780
UNSPECIFIEDGerman-Israeli Foundation for Scientific Research and Developmenthttp://dx.doi.org/10.13039/501100001736
UNSPECIFIEDUnited States-Israel Binational Science Foundationhttp://dx.doi.org/10.13039/501100001742
UNSPECIFIEDRosenzweig Minerva Research Center for German-Jewish Literature and Cultural History, Hebrew University of Jerusalemhttp://dx.doi.org/10.13039/501100001740
UNSPECIFIED[RS] Royal Societyhttp://dx.doi.org/10.13039/501100000288
UNSPECIFIEDLeverhulme Trusthttp://dx.doi.org/10.13039/501100000275
UNSPECIFIEDErewani Fizikayi Institowthttp://viaf.org/viaf/138989470
UNSPECIFIEDInvestissements d’Avenir Labex and IdexUNSPECIFIED
UNSPECIFIEDGeneralitat de Catalunya UNSPECIFIED
UNSPECIFIEDGeneralitat Valencianahttp://dx.doi.org/10.13039/501100003359
UNSPECIFIEDGöran Gustafssons StiftelserUNSPECIFIED

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