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Title: Higgs decays to Z Z and Z γ in the standard model effective field theory: An NLO analysis [Higgs decays to Z Z and Z γ in the SMEFT: An NLO analysis]

Abstract

Here, 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 NLO contributions to the decay widths. As a by-product of our calculation, we obtain the first complete result for the finite corrections to Gμ in the SMEFT.

Authors:
 [1];  [1]
  1. Brookhaven National Lab. (BNL), Upton, NY (United States)
Publication Date:
Research Org.:
Brookhaven National Lab. (BNL), Upton, NY (United States)
Sponsoring Org.:
USDOE Office of Science (SC), High Energy Physics (HEP) (SC-25)
OSTI Identifier:
1460818
Report Number(s):
BNL-207851-2018-JAAM
Journal ID: ISSN 2470-0010; PRVDAQ; TRN: US1901921
Grant/Contract Number:  
SC0012704
Resource Type:
Accepted Manuscript
Journal Name:
Physical Review D
Additional Journal Information:
Journal Volume: 97; Journal Issue: 9; Journal ID: ISSN 2470-0010
Publisher:
American Physical Society (APS)
Country of Publication:
United States
Language:
English
Subject:
72 PHYSICS OF ELEMENTARY PARTICLES AND FIELDS; neutron; anomalies; decay; asymmetry; coupling; PDG; cosmology; axial; astrophysics; particle physics

Citation Formats

Dawson, Sally, and Giardino, P. P. Higgs decays to ZZ and Zγ in the standard model effective field theory: An NLO analysis [Higgs decays to ZZ and Zγ in the SMEFT: An NLO analysis]. United States: N. p., 2018. Web. doi:10.1103/PhysRevD.97.093003.
Dawson, Sally, & Giardino, P. P. Higgs decays to ZZ and Zγ in the standard model effective field theory: An NLO analysis [Higgs decays to ZZ and Zγ in the SMEFT: An NLO analysis]. United States. doi:10.1103/PhysRevD.97.093003.
Dawson, Sally, and Giardino, P. P. Tue . "Higgs decays to ZZ and Zγ in the standard model effective field theory: An NLO analysis [Higgs decays to ZZ and Zγ in the SMEFT: An NLO analysis]". United States. doi:10.1103/PhysRevD.97.093003. https://www.osti.gov/servlets/purl/1460818.
@article{osti_1460818,
title = {Higgs decays to ZZ and Zγ in the standard model effective field theory: An NLO analysis [Higgs decays to ZZ and Zγ in the SMEFT: An NLO analysis]},
author = {Dawson, Sally and Giardino, P. P.},
abstractNote = {Here, 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 NLO contributions to the decay widths. As a by-product of our calculation, we obtain the first complete result for the finite corrections to Gμ in the SMEFT.},
doi = {10.1103/PhysRevD.97.093003},
journal = {Physical Review D},
number = 9,
volume = 97,
place = {United States},
year = {2018},
month = {5}
}

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