Double insertions of SMEFT operators in gluon fusion Higgs boson production
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arXiv
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| Format: | Preprint |
| Published: |
2022
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| _version_ | 1866917590382673920 |
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| author | Asteriadis, Konstantin Dawson, Sally Fontes, Duarte |
| author_facet | Asteriadis, Konstantin Dawson, Sally Fontes, Duarte |
| contents | Deviations from the Standard Model (SM) can be parameterized 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 towards 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 $\mathcal{O}(1/Λ^4)$ and we numerically study the impact of various approximations to the $\mathcal{O}(1/Λ^4)$ expansion. |
| format | Preprint |
| id |
arxiv_https___arxiv_org_abs_2212_03258 |
| institution | arXiv |
| publishDate | 2022 |
| record_format | arxiv |
| spellingShingle | Double insertions of SMEFT operators in gluon fusion Higgs boson production Asteriadis, Konstantin Dawson, Sally Fontes, Duarte High Energy Physics - Phenomenology Deviations from the Standard Model (SM) can be parameterized 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 towards 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 $\mathcal{O}(1/Λ^4)$ and we numerically study the impact of various approximations to the $\mathcal{O}(1/Λ^4)$ expansion. |
| title | Double insertions of SMEFT operators in gluon fusion Higgs boson production |
| topic | High Energy Physics - Phenomenology |
| url | https://arxiv.org/abs/2212.03258 |