We calculate the complete one-loop electroweak corrections to the inclusive H→ZZ and H→Zγ decays in the dimension-6 extension of the Standard Model Effective Field Theory (SMEFT). The corrections to H→ZZ are computed for on-shell Z bosons and are a precursor to the physical H→Zff calculation. We present compact numerical formulas for our results and demonstrate that the logarithmic contributions that result from the renormalization group evolution of the SMEFT coefficients are larger than the finite next-to-leading-order contributions to the decay widths. As a byproduct of our calculation, we obtain the first complete result for the finite corrections to Gμ in the SMEFT.

Dawson, S., Giardino, P.P. (2018). Higgs decays to ZZ and Zγ in the standard model effective field theory: An NLO analysis. PHYSICAL REVIEW D, 97(9) [10.1103/PhysRevD.97.093003].

Higgs decays to ZZ and Zγ in the standard model effective field theory: An NLO analysis

Giardino P. P.
2018-01-01

Abstract

We calculate the complete one-loop electroweak corrections to the inclusive H→ZZ and H→Zγ decays in the dimension-6 extension of the Standard Model Effective Field Theory (SMEFT). The corrections to H→ZZ are computed for on-shell Z bosons and are a precursor to the physical H→Zff calculation. We present compact numerical formulas for our results and demonstrate that the logarithmic contributions that result from the renormalization group evolution of the SMEFT coefficients are larger than the finite next-to-leading-order contributions to the decay widths. As a byproduct of our calculation, we obtain the first complete result for the finite corrections to Gμ in the SMEFT.
2018
Dawson, S., Giardino, P.P. (2018). Higgs decays to ZZ and Zγ in the standard model effective field theory: An NLO analysis. PHYSICAL REVIEW D, 97(9) [10.1103/PhysRevD.97.093003].
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Utilizza questo identificativo per citare o creare un link a questo documento: https://hdl.handle.net/11590/353792
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