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dc.contributor.authorCMS Collaboration
Adair, A.
Akgun, B.
Ecklund, K.M.
Geurts, F.J.M.
Li, W.
Michlin, B.
Padley,B.P.
Redjimi, R.
Roberts, J.
Zabel, J.
dc.date.accessioned 2015-07-13T19:47:27Z
dc.date.available 2015-07-13T19:47:27Z
dc.date.issued 2015
dc.identifier.citation CMS Collaboration, Adair, A., Akgun, B., et al.. "Search for a standard model-like Higgs boson in the μ+μ− and e+e− decay channels at the LHC." Physics Letters B, 744, (2015) Elsevier: 184-207. http://dx.doi.org/10.1016/j.physletb.2015.03.048.
dc.identifier.urihttps://hdl.handle.net/1911/80954
dc.description.abstract A search is presented for a standard model-like Higgs boson decaying to the μ+μ− or e+e− final states based on proton–proton collisions recorded by the CMS experiment at the CERN LHC. The data correspond to integrated luminosities of 5.0 fb−1 at a centre-of-mass energy of 7 TeV and 19.7 fb−1 at 8 TeV for the μ+μ− search, and of 19.7 fb−1 at 8 TeV for the e+e− search. Upper limits on the production cross section times branching fraction at the 95% confidence level are reported for Higgs boson masses in the range from 120 to 150 GeV. For a Higgs boson with a mass of 125 GeV decaying to μ+μ− the observed (expected) upper limit on the production rate is found to be 7.4 (6.5−1.9+2.8) times the standard model value. This corresponds to an upper limit on the branching fraction of 0.0016. Similarly, for e+e−e+e−, an upper limit of 0.0019 is placed on the branching fraction, which is ≈3.7×105 times the standard model value. These results, together with recent evidence of the 125 GeV boson coupling to τ-leptons with a larger branching fraction consistent with the standard model, confirm that the leptonic couplings of the new boson are not flavour-universal.
dc.language.iso eng
dc.publisher Elsevier
dc.rightsThis is an open access article under the CC BY license (http://creativecommons.org/licenses/by/4.0/).
dc.rights.urihttp://creativecommons.org/licenses/by/4.0
dc.title Search for a standard model-like Higgs boson in the μ+μ− and e+e− decay channels at the LHC
dc.type Journal article
dc.citation.journalTitle Physics Letters B
dc.subject.keywordCMS
physics
Higgs
lepton
muon
electron
dilepton
dimuon
dielectron
Higgs boson
dc.citation.volumeNumber 744
dc.type.dcmi Text
dc.identifier.doihttp://dx.doi.org/10.1016/j.physletb.2015.03.048
dc.type.publication publisher version
dc.citation.firstpage 184
dc.citation.lastpage 207


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This is an open access article under the CC BY license (http://creativecommons.org/licenses/by/4.0/).
Except where otherwise noted, this item's license is described as This is an open access article under the CC BY license (http://creativecommons.org/licenses/by/4.0/).