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dc.contributor.authorAaij, R.
dc.contributor.authorAbellán Beteta, C.
dc.contributor.authorAckernley, T.
dc.contributor.authorAdeva, B.
dc.contributor.authorAdinolfi, M.
dc.contributor.authorAfsharnia, H.
dc.contributor.authorAidala, C. A
dc.contributor.authorAiola, S.
dc.contributor.authorAjaltouni, Z.
dc.contributor.authorAkar, S.
dc.contributor.authorAlbrecht, J.
dc.contributor.authorAlessio, F.
dc.contributor.authorAlexander, M.
dc.contributor.authorAlfonso Albero, A.
dc.contributor.authorAliouche, Z.
dc.contributor.authorAlkhazov, G.
dc.contributor.authorAlvarez Cartelle, P.
dc.contributor.authorAmato, S.
dc.contributor.authorAmhis, Y.
dc.contributor.authorAn, L.
dc.date.accessioned2021-09-20T17:41:51Z
dc.date.available2021-09-20T17:41:51Z
dc.date.issued2021-03-22
dc.identifier.urihttps://hdl.handle.net/1721.1/132081
dc.description.abstractAbstract A search is performed for heavy neutrinos in the decay of a W boson into two muons and a jet. The data set corresponds to an integrated luminosity of approximately $$3.0\, \text {fb} ^{-1} $$ 3.0 fb - 1 of proton–proton collision data at centre-of-mass energies of 7 and $$8\, \text {TeV} $$ 8 TeV collected with the LHCb experiment. Both same-sign and opposite-sign muons in the final state are considered. Data are found to be consistent with the expected background. Upper limits on the coupling of a heavy neutrino with the Standard Model neutrino are set at $$95\%$$ 95 % confidence level in the heavy-neutrino mass range from 5 to $$50\, \text {GeV/}c^2 $$ 50 GeV/ c 2 . These are of the order of $$10^{-3}$$ 10 - 3 for lepton-number-conserving decays and of the order of $$10^{-4}$$ 10 - 4 for lepton-number-violating heavy-neutrino decays.en_US
dc.publisherSpringer Berlin Heidelbergen_US
dc.relation.isversionofhttps://doi.org/10.1140/epjc/s10052-021-08973-5en_US
dc.rightsCreative Commons Attributionen_US
dc.rights.urihttps://creativecommons.org/licenses/by/4.0/en_US
dc.sourceSpringer Berlin Heidelbergen_US
dc.titleSearch for heavy neutral leptons in $$W^+\rightarrow \mu ^{+}\mu ^{\pm }\, \text {jet}$$ W + → μ + μ ± jet decaysen_US
dc.typeArticleen_US
dc.identifier.citationThe European Physical Journal C. 2021 Mar 22;81(3):248en_US
dc.contributor.departmentMassachusetts Institute of Technology. Department of Physics
dc.identifier.mitlicensePUBLISHER_CC
dc.eprint.versionFinal published versionen_US
dc.type.urihttp://purl.org/eprint/type/JournalArticleen_US
eprint.statushttp://purl.org/eprint/status/PeerRevieweden_US
dc.date.updated2021-03-28T03:40:39Z
dc.language.rfc3066en
dc.rights.holderCERN for the benefit of the LHCb collaboration
dspace.embargo.termsN
dspace.date.submission2021-03-28T03:40:39Z
mit.licensePUBLISHER_CC
mit.metadata.statusAuthority Work and Publication Information Needed


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