Observation of the Higgs boson decay to a pair of τ leptons with the CMS detector

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A measurement of the H→ττ signal strength is performed using events recorded in proton–proton collisions by the CMS experiment at the LHC in 2016 at a center-of-mass energy of 13TeV. The data set corresponds to an integrated luminosity of 35.9fb−1. The H→ττ signal is established with a significance of 4.9 standard deviations, to be compared to an expected significance of 4.7 standard deviations. The best fit of the product of the observed H→ττ signal production cross section and branching fraction is 1.09−0.26 +0.27 times the standard model expectation. The combination with the corresponding measurement performed with data collected by the CMS experiment at center-of-mass energies of 7 and 8TeV leads to an observed significance of 5.9 standard deviations, equal to the expected significance. This is the first observation of Higgs boson decays to τ leptons by a single experiment. © 2018 The Author(s)

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AlanDeğerDil
dc.contributor.authorSirunyan, A.M.
dc.contributor.authorTumasyan, A.
dc.contributor.authorAdam, W.
dc.contributor.authorAmbrogi, F.
dc.contributor.authorAsilar, E.
dc.contributor.authorBergauer, T.
dc.contributor.authorBrandstetter, J.
dc.contributor.authorBrondolin, E.
dc.contributor.authorDragicevic, M.
dc.contributor.authorErö, J.
dc.contributor.authorFlechl, M.
dc.contributor.authorFriedl, M.
dc.contributor.authorFrühwirth, R.
dc.contributor.authorGhete, V.M.
dc.contributor.authorGrossmann, J.
dc.contributor.authorHrubec, J.
dc.contributor.authorJeitler, M.
dc.contributor.authorKönig, A.
dc.contributor.authorKrammer, N.
dc.contributor.authorKrätschmer, I.
dc.contributor.authorLiko, D.
dc.contributor.authorMadlener, T.
dc.contributor.authorMikulec, I.
dc.contributor.authorPree, E.
dc.contributor.authorRabady, D.
dc.contributor.authorRad, N.
dc.contributor.authorRohringer, H.
dc.contributor.authorSchieck, J.
dc.contributor.authorSchöfbeck, R.
dc.contributor.authorSpanring, M.
dc.contributor.authorSpitzbart, D.
dc.contributor.authorWaltenberger, W.
dc.contributor.authorWittmann, J.
dc.contributor.authorWulz, C.-E.
dc.contributor.authorZarucki, M.
dc.contributor.authorChekhovsky, V.
dc.contributor.authorMossolov, V.
dc.contributor.authorSuarez Gonzalez, J.
dc.contributor.authorDe Wolf, E.A.
dc.contributor.authorDi Croce, D.
dc.contributor.authorJanssen, X.
dc.contributor.authorLauwers, J.
dc.contributor.authorVan Haevermaet, H.
dc.contributor.authorVan Mechelen, P.
dc.contributor.authorVan Remortel, N.
dc.contributor.authorAbu Zeid, S.
dc.contributor.authorBlekman, F.
dc.contributor.authorD'Hondt, J.
dc.contributor.authorDe Bruyn, I.
dc.contributor.authorDe Clercq, J.
dc.date.accessioned2026-10-18T20:29:16.342502884Z
dc.date.available2026-10-18T20:29:16.342502884Z
dc.date.issued2018
dc.description.abstractA measurement of the H→ττ signal strength is performed using events recorded in proton–proton collisions by the CMS experiment at the LHC in 2016 at a center-of-mass energy of 13TeV. The data set corresponds to an integrated luminosity of 35.9fb−1. The H→ττ signal is established with a significance of 4.9 standard deviations, to be compared to an expected significance of 4.7 standard deviations. The best fit of the product of the observed H→ττ signal production cross section and branching fraction is 1.09−0.26 +0.27 times the standard model expectation. The combination with the corresponding measurement performed with data collected by the CMS experiment at center-of-mass energies of 7 and 8TeV leads to an observed significance of 5.9 standard deviations, equal to the expected significance. This is the first observation of Higgs boson decays to τ leptons by a single experiment. © 2018 The Author(s)
dc.description.sponsorship; Science and Technology Facilities Council, STFC, (GRIDPP, ST/N000242/1); Science and Technology Facilities Council, STFC; National Science Foundation, NSF, (1606321, 1506168, 1151640, 1508869, 1506130); National Science Foundation, NSF; Horizon 2020 Framework Programme, H2020, (675440); Horizon 2020 Framework Programme, H2020
dc.identifier.doi10.1016/j.physletb.2018.02.004
dc.identifier.endpage316
dc.identifier.issn0370-2693
dc.identifier.scopus2-s2.0-85047666573
dc.identifier.startpage283
dc.identifier.urihttps://rdlopen.rawdatalibrary.net/r/ebyu/14462
dc.identifier.volume779
dc.language.isoen
dc.publisherElsevier B.V.
dc.relation.ispartofPhysics Letters, Section B: Nuclear, Elementary Particle and High-Energy Physics
dc.rightsinfo:eu-repo/semantics/openAccess
dc.subjectCMS
dc.subjectHiggs
dc.subjectLHC
dc.subjectObservation
dc.subjectPhysics
dc.subjectTau
dc.titleObservation of the Higgs boson decay to a pair of τ leptons with the CMS detector
dc.typeArticle
dspace.entity.typePublication
rdl.citation.scopus229
rdl.oa.statusgold
rdl.source.indexSCOPUS