Constraining new physics effective interactions via a global fit of electroweak, Drell-Yan, Higgs, top, and flavour observables
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arXiv
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| Autori principali: | , , , , , |
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| Natura: | Preprint |
| Pubblicazione: |
2025
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| _version_ | 1866917336887328768 |
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| author | de Blas, J. Goncalves, A. Miralles, V. Reina, L. Silvestrini, L. Valli, M. |
| author_facet | de Blas, J. Goncalves, A. Miralles, V. Reina, L. Silvestrini, L. Valli, M. |
| contents | We present results from a global fit of Standard Model parameters and dimension-6 SMEFT Wilson coefficients that includes electroweak, Drell-Yan, Higgs-boson, top-quark, and flavour observables. Fits obtained by floating individual coefficients are also discussed. The leading-order scale dependence of the SMEFT Wilson coefficients is consistently included in the evolution from the UV scale to the electroweak scale and the low-energy scale of flavour observables. In defining the SMEFT set of active operators we consider both the $U(3)^5$ and the $U(2)^5$ flavour symmetric limits. All fits are obtained within the $\texttt{HEPfit}$ framework and are based on the most recent experimental results and state-of-the-art theoretical predictions for all the observables considered. |
| format | Preprint |
| id |
arxiv_https___arxiv_org_abs_2507_06191 |
| institution | arXiv |
| publishDate | 2025 |
| record_format | arxiv |
| spellingShingle | Constraining new physics effective interactions via a global fit of electroweak, Drell-Yan, Higgs, top, and flavour observables de Blas, J. Goncalves, A. Miralles, V. Reina, L. Silvestrini, L. Valli, M. High Energy Physics - Phenomenology We present results from a global fit of Standard Model parameters and dimension-6 SMEFT Wilson coefficients that includes electroweak, Drell-Yan, Higgs-boson, top-quark, and flavour observables. Fits obtained by floating individual coefficients are also discussed. The leading-order scale dependence of the SMEFT Wilson coefficients is consistently included in the evolution from the UV scale to the electroweak scale and the low-energy scale of flavour observables. In defining the SMEFT set of active operators we consider both the $U(3)^5$ and the $U(2)^5$ flavour symmetric limits. All fits are obtained within the $\texttt{HEPfit}$ framework and are based on the most recent experimental results and state-of-the-art theoretical predictions for all the observables considered. |
| title | Constraining new physics effective interactions via a global fit of electroweak, Drell-Yan, Higgs, top, and flavour observables |
| topic | High Energy Physics - Phenomenology |
| url | https://arxiv.org/abs/2507.06191 |