Constraints on the Higgs boson width from off-shell production and decay to Z-boson pairs

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dc.contributor.authorCMS Collaboration
dc.contributor.authorCharaf, O.
dc.contributor.authorCooper, S.I.
dc.contributor.authorHenderson, C.
dc.contributor.authorRumerio, P.
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dc.date.accessioned2022-08-02T15:12:02Z
dc.date.available2022-08-02T15:12:02Z
dc.date.issued2014
dc.description.abstractConstraints are presented on the total width of the recently discovered Higgs boson, \(\Gamma_H\), using its relative on-shell and off-shell production and decay rates to a pair of Z bosons, where one Z boson decays to an electron or muon pair, and the other to an electron, muon, or neutrino pair. The analysis is based on the data collected by the CMS experiment at the LHC in 2011 and 2012, corresponding to integrated luminosities of 5.1 fb⁻¹ at a center-of-mass energy \(\sqrt{s}\) = 7 TeV and 19.7 fb⁻¹ at \(\sqrt{s}\) = 8 TeV. A simultaneous maximum likelihood fit to the measured kinematic distributions near the resonance peak and above the Z-boson pair production threshold leads to an upper limit on the Higgs boson width of \(\Gamma_H\) < 22 MeV at a 95% confidence level, which is 5.4 times the expected value in the standard model at the measured mass of \(m_H\) = 125.6 GeV.en_US
dc.format.mimetypeapplication/pdf
dc.identifier.citationKhachatryan, V., Sirunyan, A. M., Tumasyan, A., Adam, W., Bergauer, T., Dragicevic, M., Erö, J., Fabjan, C., Friedl, M., Frühwirth, R., Ghete, V. M., Hartl, C., Hörmann, N., Hrubec, J., Jeitler, M., Kiesenhofer, W., Knünz, V., Krammer, M., Krätschmer, I., … Woods, N. (2014). Constraints on the Higgs boson width from off-shell production and decay to Z-boson pairs. In Physics Letters B (Vol. 736, pp. 64–85). Elsevier BV. https://doi.org/10.1016/j.physletb.2014.06.077
dc.identifier.doi10.1016/j.physletb.2014.06.077
dc.identifier.urihttps://ir.ua.edu/handle/123456789/8769
dc.languageEnglish
dc.language.isoen_US
dc.publisherElsevier
dc.rights.urihttp://creativecommons.org/licenses/by/3.0/
dc.subjectCMS
dc.subjectPhysics
dc.subjectHiggs
dc.subjectDiboson
dc.subjectProperties
dc.subjectPARTON DISTRIBUTIONS
dc.subjectAstronomy & Astrophysics
dc.subjectPhysics, Nuclear
dc.subjectPhysics, Particles & Fields
dc.titleConstraints on the Higgs boson width from off-shell production and decay to Z-boson pairsen_US
dc.typetext
dc.typeArticle

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