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

The CMS Collaboration

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    198 Citations (Scopus)

    Abstract

    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.

    Original languageEnglish
    Pages (from-to)283-316
    Number of pages34
    JournalPhysics Letters, Section B: Nuclear, Elementary Particle and High-Energy Physics
    Volume779
    DOIs
    Publication statusPublished - 2018 Apr 10

    Bibliographical note

    Publisher Copyright:
    © 2018 The Author(s)

    Keywords

    • CMS
    • Higgs
    • LHC
    • Observation
    • Physics
    • Tau

    ASJC Scopus subject areas

    • Nuclear and High Energy Physics

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