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Search for heavy Majorana neutrinos with the ATLAS detector in pp collisions at s=8 TeV

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ATLAS Collaboration (Including: Beckingham, M., Farrington, Sinead, Harrison, P. F., Janus, M., Jeske, C., Jones, G. (Graham), Martin, T. A., Murray, W. and Pianori, E.). (2015) Search for heavy Majorana neutrinos with the ATLAS detector in pp collisions at s=8 TeV. Journal of High Energy Physics, 2015 (7). 162. doi:10.1007/jhep07(2015)162

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Official URL: https://doi.org/10.1007/jhep07(2015)162

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Abstract

A search for heavy Majorana neutrinos in events containing a pair of high-pT leptons of the same charge and high-pT jets is presented. The search uses 20.3 fb−1 of pp collision data collected with the ATLAS detector at the CERN Large Hadron Collider with a centre-of-mass energy of s=8 TeV. The data are found to be consistent with the background-only hypothesis based on the Standard Model expectation. In the context of a Type-I seesaw mechanism, limits are set on the production cross-section times branching ratio for production of heavy Majorana neutrinos in the mass range between 100 and 500 GeV. The limits are subsequently interpreted as limits on the mixing between the heavy Majorana neutrinos and the Standard Model neutrinos. In the context of a left-right symmetric model, limits on the production cross-section times branching ratio are set with respect to the masses of heavy Majorana neutrinos and heavy gauge bosons WR and Z′.

Item Type: Journal Article
Subjects: Q Science > QC Physics
Divisions: Faculty of Science, Engineering and Medicine > Science > Physics
SWORD Depositor: Library Publications Router
Library of Congress Subject Headings (LCSH): Hadrons -- Scattering, Neutrinos, Particles (Nuclear physics)
Journal or Publication Title: Journal of High Energy Physics
Publisher: Springer Berlin Heidelberg
ISSN: 1029-8479
Official Date: 29 July 2015
Dates:
DateEvent
29 July 2015Published
5 July 2015Accepted
Volume: 2015
Number: 7
Article Number: 162
DOI: 10.1007/jhep07(2015)162
Status: Peer Reviewed
Publication Status: Published
Reuse Statement (publisher, data, author rights):
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
UNSPECIFIEDErevanskij Fizičeskij Instituthttp://viaf.org/viaf/138989470
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
UNSPECIFIEDAzärbaycan Milli Elmlär Akademiyasıhttp://viaf.org/viaf/168770251
UNSPECIFIEDBelarus. Gosudarstvennyĭ komitet po nauke i tekhnologii︠a︡mhttp://viaf.org/viaf/154732294
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
UNSPECIFIED[CONICYT] Comisión Nacional de Investigación Científica y Tecnológicahttp://dx.doi.org/10.13039/501100002848
UNSPECIFIED[CAS] Chinese Academy of Scienceshttp://dx.doi.org/10.13039/501100002367
UNSPECIFIED[MSTPRC] Ministry 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 Innovaciónhttp://dx.doi.org/10.13039/100007637
UNSPECIFIEDMinisterstvo Školství, Mládeže a Tělovýchovyhttp://dx.doi.org/10.13039/501100001823
UNSPECIFIEDMinisterstvo Průmyslu a Obchoduhttp://dx.doi.org/10.13039/501100004578
UNSPECIFIEDVienna Scientific ClusterUNSPECIFIED
UNSPECIFIEDDanmarks Grundforskningsfondhttp://dx.doi.org/10.13039/501100001732
UNSPECIFIEDNatur og Univers, Det Frie Forskningsrådhttp://dx.doi.org/10.13039/100008394
UNSPECIFIEDLundbeckfondenhttp://dx.doi.org/10.13039/501100003554
EPLANETEuropean Commissionhttp://dx.doi.org/10.13039/501100000780
UNSPECIFIEDEuropean Research Council http://viaf.org/viaf/130022607
National Strategic Reference Framework (NSRF)European Commissionhttp://dx.doi.org/10.13039/501100000780
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
UNSPECIFIED[CEA] Commissariat à l'Énergie Atomique et aux Énergies Alternativeshttp://dx.doi.org/10.13039/501100006489
UNSPECIFIEDInstitut de recherche sur les lois fondamentales de l'universUNSPECIFIED
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
UNSPECIFIEDAlexander von Humboldt-Stiftunghttp://dx.doi.org/10.13039/100005156
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
UNSPECIFIEDMinerva Foundationhttp://dx.doi.org/10.13039/501100001658
UNSPECIFIEDGerman-Israeli Foundation for Scientific Research and Developmenthttp://dx.doi.org/10.13039/501100001736
UNSPECIFIEDUNSPECIFIEDhttp://viaf.org/viaf/311794638
UNSPECIFIEDWeizmann Institute of Sciencehttp://dx.doi.org/10.13039/501100001735
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
UNSPECIFIEDUNSPECIFIEDhttp://viaf.org/viaf/154740159
UNSPECIFIED[MES] Ministry of Education and Science of the Russian Federationhttp://dx.doi.org/10.13039/501100003443
UNSPECIFIEDUNSPECIFIEDhttp://viaf.org/viaf/125146937704813830418
UNSPECIFIEDJoint Institute for Nuclear Researchhttp://dx.doi.org/10.13039/501100003822
UNSPECIFIEDMinistarstvo Prosvete, Nauke i Tehnološkog Razvojahttp://dx.doi.org/10.13039/501100004564
UNSPECIFIEDMinisterstvo spravodlivostiUNSPECIFIED
UNSPECIFIEDJavna Agencija za Raziskovalno Dejavnost RShttp://dx.doi.org/10.13039/501100004329
UNSPECIFIEDDepartment of Science and Technology, Republic of South Africahttp://dx.doi.org/10.13039/501100001342
UNSPECIFIEDUNSPECIFIEDhttp://viaf.org/viaf/137694659
UNSPECIFIED[MINECO] Ministerio de Economía y Competitividadhttp://dx.doi.org/10.13039/501100003329
UNSPECIFIEDVetenskapsrådethttp://dx.doi.org/10.13039/501100004359
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 and Geneva, SwitzerlandUNSPECIFIED
UNSPECIFIEDMinistry of Science and Technology, Taiwanhttp://dx.doi.org/10.13039/501100004663
UNSPECIFIEDTürkiye Atom Enerjisi Kurumuhttp://dx.doi.org/10.13039/100010440
UNSPECIFIED[STFC] Science and Technology Facilities Councilhttp://dx.doi.org/10.13039/501100000271
UNSPECIFIED[RS] Royal Societyhttp://dx.doi.org/10.13039/501100000288
UNSPECIFIEDLeverhulme Trusthttp://dx.doi.org/10.13039/501100000275
UNSPECIFIED[DOE] U.S. Department of Energyhttp://dx.doi.org/10.13039/100000015
UNSPECIFIEDNational Science Foundationhttp://dx.doi.org/10.13039/100000001

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