3 papers
hep-ph2025
How large can lepton mixing be?
J. de Blas, C. Giuliano, G. Guedes +2
We show that, contrary to common expectations, the observed charged leptons can have a substantial mixing with new heavier fermions, at the level of 20. This can happen, in the…
hep-ph2024
From the EFT to the UV: the complete SMEFT one-loop dictionary
Guilherme Guedes, Pablo Olgoso
Effective field theories (EFTs) provide an excellent framework for the search of heavy physics beyond the Standard Model, using the so-called bottom-up and top-down approaches. How…
hep-ph2023
Towards the one loop IR/UV dictionary in the SMEFT: one loop generated operators from new scalars and fermions
G. Guedes, P. Olgoso, J. Santiago
Effective field theories offer a rationale to classify new physics models based on the size of their contribution to the effective Lagrangian, and therefore to experimental observa…