SMEFT ATLAS: The landscape beyond the Standard Model
Abstract
The Standard Model Effective Field Theory (SMEFT) based on the unbroken gauge group SU(3)C⊗SU(2)L⊗U(1)Y and containing only particles of the Standard Model (SM) has developed in the last decade to a mature field. It is the framework to be used in the energy gap from scales sufficiently higher than the electroweak scale up to the lowest energy scale at which new particles show up. We summarize the present status of this theory with a particular emphasize on its role in the indirect search for new physics (NP). While flavour physics of both quarks and leptons is the main topic of our review, we also discuss electric dipole moments, anomalous magnetic moments (g−2)μ,e, Z-pole observables, Higgs observables and high-pT scattering processes within the SMEFT. We group the observables into ten classes and list for each class the most relevant operators and the corresponding renormalization group equations (RGEs). We exhibit the correlations between different classes implied both by the operator mixing and the SU(2)L gauge symmetry. Our main goal is to provide an insight into the complicated operator structure of this framework which hopefully will facilitate the identification of valid ultraviolet completions behind possible anomalies observed in future data. Numerous colourful charts, and 85 tables, while representing rather complicated RG evolution from the NP scale down to the electroweak scale, beautify the involved SMEFT landscape. Over 950 references to the literature underline the importance and the popularity of this field. We discuss both top-down and bottom-up approaches as well as their interplay. This allows us eventually to present an atlas of different landscapes beyond the SM that includes heavy gauge bosons and scalars, vector-like quarks and leptons and leptoquarks.
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BibTeX
@article{aebischer2026smeft,
title = {{SMEFT ATLAS: The landscape beyond the Standard Model}},
author = {Jason Aebischer and Andrzej J. Buras A and Jacky Kumar},
journal = {Physics Reports},
year = {2026},
month = jul,
doi = {10.1016/j.physrep.2026.07.003},
url = {https://doi.org/10.1016/j.physrep.2026.07.003},
note = {CC BY},
}
RIS
TY - JOUR
TI - SMEFT ATLAS: The landscape beyond the Standard Model
AU - Jason Aebischer
AU - Andrzej J. Buras A
AU - Jacky Kumar
PY - 2026
DA - 2026/07/29
JO - Physics Reports
DO - 10.1016/j.physrep.2026.07.003
UR - https://doi.org/10.1016/j.physrep.2026.07.003
AB - The Standard Model Effective Field Theory (SMEFT) based on the unbroken gauge group SU(3)_C⊗SU(2)_L⊗U(1)_Y and containing only particles of the Standard Model (SM) has developed in the last decade to a mature field. It is the framework to be used in the energy gap from scales sufficiently higher than the electroweak scale up to the lowest energy scale at which new particles show up. We summarize the present status of this theory with a particular emphasize on its role in the indirect search for new physics (NP). While flavour physics of both quarks and leptons is the main topic of our review, we also discuss electric dipole moments, anomalous magnetic moments (g−2)_μ,e, Z-pole observables, Higgs observables and high-p_T scattering processes within the SMEFT. We group the observables into ten classes and list for each class the most relevant operators and the corresponding renormalization group equations (RGEs). We exhibit the correlations between different classes implied both by the operator mixing and the SU(2)_L gauge symmetry. Our main goal is to provide an insight into the complicated operator structure of this framework which hopefully will facilitate the identification of valid ultraviolet completions behind possible anomalies observed in future data. Numerous colourful charts, and 85 tables, while representing rather complicated RG evolution from the NP scale down to the electroweak scale, beautify the involved SMEFT landscape. Over 950 references to the literature underline the importance and the popularity of this field. We discuss both top-down and bottom-up approaches as well as their interplay. This allows us eventually to present an atlas of different landscapes beyond the SM that includes heavy gauge bosons and scalars, vector-like quarks and leptons and leptoquarks.
SN - 0370-1573
SN - 1873-6270
ER -