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Searches for the Zγ decay mode of the Higgs boson and for new high-mass resonances in pp collisions at s=13 TeV with the ATLAS detector

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ATLAS Collaboration (Including: Beckingham, M., Ennis, Joseph Stanford, Farrington, Sinead, Harrison, P. F., Jelinskas, Adomas, Jeske, C., Martin, T. A., Murray, W., Pianori, E. and Spangenberg, Martin). (2017) Searches for the Zγ decay mode of the Higgs boson and for new high-mass resonances in pp collisions at s=13 TeV with the ATLAS detector. Journal of High Energy Physics, 2017 (10). 112. doi:10.1007/jhep10(2017)112

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Official URL: http://doi.org/10.1007/jhep10(2017)112

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Abstract

AbstractThis article presents searches for the Zγ decay of the Higgs boson and for narrow high-mass resonances decaying to Zγ, exploiting Z boson decays to pairs of electrons or muons. The data analysis uses 36.1 fb−1 of pp collisions at s=13 recorded by the ATLAS detector at the CERN Large Hadron Collider. The data are found to be consistent with the expected Standard Model background. The observed (expected — assuming Standard Model pp → H → Zγ production and decay) upper limit on the production cross section times the branching ratio for pp → H → Zγ is 6.6. (5.2) times the Standard Model prediction at the 95% confidence level for a Higgs boson mass of 125.09 GeV. In addition, upper limits are set on the production cross section times the branching ratio as a function of the mass of a narrow resonance between 250 GeV and 2.4 TeV, assuming spin-0 resonances produced via gluon-gluon fusion, and spin-2 resonances produced via gluon-gluon or quark-antiquark initial states. For high-mass spin-0 resonances, the observed (expected) limits vary between 88 fb (61 fb) and 2.8 fb (2.7 fb) for the mass range from 250 GeV to 2.4 TeV at the 95% confidence level.

Item Type: Journal Article
Subjects: Q Science > QC Physics
Divisions: Faculty of Science > Physics
SWORD Depositor: Library Publications Router
Library of Congress Subject Headings (LCSH): Particles (Nuclear physics), Higgs bosons, Nuclear physics, Scattering (Physics), Hadrons — Scattering
Journal or Publication Title: Journal of High Energy Physics
Publisher: Springer
ISSN: 1029-8479
Official Date: 17 October 2017
Dates:
DateEvent
17 October 2017Published
18 September 2017Accepted
Volume: 2017
Number: 10
Article Number: 112
DOI: 10.1007/jhep10(2017)112
Status: Peer Reviewed
Publication Status: Published
Access rights to Published version: Open Access
RIOXX Funder/Project Grant:
Project/Grant IDRIOXX Funder NameFunder ID
UNSPECIFIEDAgencia Nacional de Promoción Científica y Tecnológicahttp://dx.doi.org/10.13039/501100003074
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
UNSPECIFIEDConselho Nacional de Desenvolvimento Científico e Tecnológicohttp://dx.doi.org/10.13039/501100003593
UNSPECIFIEDFundação de Amparo à Pesquisa do Estado de São Paulohttp://dx.doi.org/10.13039/501100001807
UNSPECIFIED[NSERC] Natural Sciences and Engineering Research Council of Canadahttp://dx.doi.org/10.13039/501100000038
UNSPECIFIED[NRC] National Research Council Canadahttp://dx.doi.org/10.13039/501100000046
UNSPECIFIED[CFI] Canada Foundation for Innovationhttp://dx.doi.org/10.13039/501100000196
UNSPECIFIEDCERNhttp://dx.doi.org/10.13039/100012470
UNSPECIFIED[CONICYT] Comisión Nacional de Investigación Científica y Tecnológicahttp://dx.doi.org/10.13039/501100002848
UNSPECIFIED[NSFC] National Natural Science Foundation of Chinahttp://dx.doi.org/10.13039/501100001809
UNSPECIFIEDMinistry of Science and Technology, Taiwanhttp://dx.doi.org/10.13039/501100004663
UNSPECIFIEDColombia. Departamento Administrativo de Ciencia, Tecnología e Innovaciónhttp://viaf.org/viaf/173248635
UNSPECIFIEDCzech Republic.‏ Ministerstvo školství, mládeže a tělovýchovy‏http://viaf.org/viaf/312885350
UNSPECIFIEDMinisterstvo Průmyslu a Obchoduhttp://viaf.org/viaf/141216211
UNSPECIFIEDDanmarks Grundforskningsfondhttp://dx.doi.org/10.13039/501100001732
UNSPECIFIEDNatur og Univers, Det Frie Forskningsrådhttp://dx.doi.org/10.13039/100008394
UNSPECIFIED[IN2P3] Institut national de physique nucléaire et de physique des particuleshttp://viaf.org/viaf/137207166
UNSPECIFIEDShota Rustaveli National Science Foundationhttp://dx.doi.org/10.13039/501100004801
UNSPECIFIEDBundesministerium für Forschung und Technologiehttp://dx.doi.org/10.13039/501100004937
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
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
UNSPECIFIEDNorges Forskningsrådhttp://dx.doi.org/10.13039/501100005416
UNSPECIFIEDPoland.‏ Ministerstwo Szkolnictwa Wyższego‏http://viaf.org/viaf/142521822
UNSPECIFIEDNarodowe Centrum Naukihttp://dx.doi.org/10.13039/501100004281
UNSPECIFIEDInstitutul de Fizica Atomicahttp://viaf.org/viaf/154740159
UNSPECIFIED[MES] Ministry of Education and Science of the Russian Federationhttp://dx.doi.org/10.13039/501100003443
UNSPECIFIEDGost︠s︡entr "Priroda" (Russia)‏http://viaf.org/viaf/145472951
UNSPECIFIEDJoint Institute for Nuclear Researchhttp://dx.doi.org/10.13039/501100003822
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 Technology, Republic of South Africahttp://dx.doi.org/10.13039/501100001342
UNSPECIFIED[MINECO] Ministerio de Economía y Competitividadhttp://dx.doi.org/10.13039/501100003329
UNSPECIFIEDFundo Regional para a Ciência e Tecnologiahttp://dx.doi.org/10.13039/100008382
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
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/10.13039/100000001
UNSPECIFIEDBritish Columbia Knowledge Development Fundhttp://dx.doi.org/10.13039/501100007711
UNSPECIFIED[NRC] National Research Council Canadahttp://dx.doi.org/10.13039/501100000046
UNSPECIFIEDCanariehttp://dx.doi.org/10.13039/100008313
UNSPECIFIEDCanada Research Chairshttp://dx.doi.org/10.13039/501100001804
UNSPECIFIEDCompute Canadahttp://dx.doi.org/10.13039/100013020
UNSPECIFIEDFonds Québécois de la Recherche sur la Nature et les Technologieshttp://dx.doi.org/10.13039/501100003150
UNSPECIFIEDOntario Innovation Trusthttp://dx.doi.org/10.13039/100008185
UNSPECIFIEDH2020 European Research Councilhttp://dx.doi.org/10.13039/100010663
UNSPECIFIED[ERDF] European Regional Development Fundhttp://dx.doi.org/10.13039/501100008530
UNSPECIFIEDSeventh Framework Programmehttp://dx.doi.org/10.13039/100011102
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
UNSPECIFIEDRégion Auvergne and Fondation Partager le SavoirUNSPECIFIED
UNSPECIFIED[MSTPRC] Ministry of Science and Technology of the People's Republic of Chinahttp://dx.doi.org/10.13039/501100002855
UNSPECIFIEDNederlandse Organisatie voor Wetenschappelijk Onderzoekhttp://dx.doi.org/10.13039/501100003246

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