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Search for lepton-flavor violating decays of the Higgs boson in the $\mu\tau$ and e$\tau$ final states in proton-proton collisions at $\sqrt{s}$ = 13 TeV

The CMS collaboration
Phys.Rev.D 104 (2021) 032013, 2021.

Abstract
A search is presented for lepton-flavor violating decays of the Higgs boson to $\mu\tau$ and e$\tau$. The data set corresponds to an integrated luminosity of 137 fb$^{-1}$ collected at the LHC in proton-proton collisions at a center-of-mass energy of 13 TeV. No significant excess has been found, and the results are interpreted in terms of upper limits on lepton-flavor violating branching fractions of the Higgs boson. The observed (expected) upper limits on the branching fractions are, respectively, $\mathcal{B}($H $\to\mu\tau)$$\lt$ 0.15 (0.15)% and $\mathcal{B}($H$\to$e$\tau)$ $\lt$ 0.22 (0.16)% at 95% confidence level.

  • Table 1

    Figure 7 (left) in the paper

    10.17182/hepdata.104861.v1/t1

    Observed (expected) 95% CL upper limits on $B(H\to\mu\tau)$ for each individual category and combined

  • Table 2

    Figure 7 (right) in the paper.

    10.17182/hepdata.104861.v1/t2

    Observed (expected) 95% CL upper limits on $B(H\to e\tau)$ for each individual category and combined

  • Table 3

    Table 6 in the paper

    10.17182/hepdata.104861.v1/t3

    Summary of observed and expected upper limits at 95% CL, best fit branching fractions and corresponding constraints on Yukawa couplings...

  • Table 4

    Table 6 in the paper

    10.17182/hepdata.104861.v1/t4

    95% CL observed upper limits on the Yukawa couplings

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