Complete NLO SMEFT Electroweak Corrections to Higgs Decays
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arXiv
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| Main Authors: | , , , , |
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| Format: | Preprint |
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2025
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| _version_ | 1866909988196188160 |
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| author | Bellafronte, Luigi Dawson, Sally Del Pio, Clara Forslund, Matthew Giardino, Pier Paolo |
| author_facet | Bellafronte, Luigi Dawson, Sally Del Pio, Clara Forslund, Matthew Giardino, Pier Paolo |
| contents | Precise predictions for Higgs decays are a crucial ingredient of the search for beyond the Standard Model (BSM) physics and the Standard Model Effective Field Theory (SMEFT) is a valuable tool for quantifying deviations from the Standard Model (SM). We present the complete set of predictions for the 2- and 3- body Higgs decays at next-to-leading order (NLO), considering QCD and electroweak corrections and including all contributions from the dimension-6 SMEFT operators and with an arbitrary flavor structure. Including the NLO SMEFT results for Higgs decays greatly increases the sensitivity to BSM physics of the $e^+e^-\rightarrow Zh$ process at FCC-ee, as compared with that obtained using only the total cross section. |
| format | Preprint |
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arxiv_https___arxiv_org_abs_2508_14966 |
| institution | arXiv |
| publishDate | 2025 |
| record_format | arxiv |
| spellingShingle | Complete NLO SMEFT Electroweak Corrections to Higgs Decays Bellafronte, Luigi Dawson, Sally Del Pio, Clara Forslund, Matthew Giardino, Pier Paolo High Energy Physics - Phenomenology Precise predictions for Higgs decays are a crucial ingredient of the search for beyond the Standard Model (BSM) physics and the Standard Model Effective Field Theory (SMEFT) is a valuable tool for quantifying deviations from the Standard Model (SM). We present the complete set of predictions for the 2- and 3- body Higgs decays at next-to-leading order (NLO), considering QCD and electroweak corrections and including all contributions from the dimension-6 SMEFT operators and with an arbitrary flavor structure. Including the NLO SMEFT results for Higgs decays greatly increases the sensitivity to BSM physics of the $e^+e^-\rightarrow Zh$ process at FCC-ee, as compared with that obtained using only the total cross section. |
| title | Complete NLO SMEFT Electroweak Corrections to Higgs Decays |
| topic | High Energy Physics - Phenomenology |
| url | https://arxiv.org/abs/2508.14966 |