Abstract
We apply the covariant derivative expansion of the Coleman-Weinberg potential to vector-like fermion models, matching the UV theory to the relevant dimension-6 operators in the standard model effective field theory. The γ matrix induced complication in the fermionic covariant derivative expansion is studied in detail, and all the contributing combinations are enumerated. From this analytical result we also provide numerical constraints for a generation of vector-like quarks and vector-like leptons.
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Huo, R. Standard model effective field theory: integrating out vector-like fermions. J. High Energ. Phys. 2015, 37 (2015). https://doi.org/10.1007/JHEP09(2015)037
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DOI: https://doi.org/10.1007/JHEP09(2015)037