Double insertions of SMEFT operators in gluon fusion Higgs boson production - INSPIRE

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Double insertions of SMEFT operators in gluon fusion Higgs boson production

Dec 6, 2022

13 pages

Published in:

Phys.Rev.D 107 (2023) 5, 055038

Published: Mar 1, 2023

e-Print:

2212.03258 [hep-ph]

DOI:

10.1103/PhysRevD.107.055038 (publication)

View in:

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Abstract: (APS)

Deviations from the Standard Model (SM) can be parametrized in terms of the SM effective field theory (SMEFT), which is typically truncated at dimension-6. Including higher dimension operators—as well as considering simultaneous insertions of multiple dimension-6 operators—may be necessary in some processes, in order to correctly capture the properties of the underlying UV theory. As a step toward clarifying this in the Higgs boson production in gluon fusion process, we study double insertions of dimension-6 operators in the 1-loop virtual amplitude. We present needed Feynman rules up to

O (1 / Λ^{4})

and we numerically study the impact of various approximations to the

O (1 / Λ^{4})

expansion.

Note:

Auxiliary file replaced

new physics
effective field theory
operator: dimension: 6
operator: dimension: 8
renormalization group
gluon: fusion
Higgs particle: production
gluon gluon --> Higgs particle

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