Ana Martín-Galán

Flavorful Lepton-Number-Violating SMEFT: Loop Mixing, $0\nu\beta\beta$ and Rare Meson Decays

We investigate how one-loop operator mixing reshapes the flavor sensitivity of lepton-number-violating dimension-7 SMEFT interactions. Using both bottom-up and top-down EFT approaches, we study the interplay of neutrinoless double beta decay ($0\nu\beta\beta$) and neutral current rare meson decays $K\to\pi\nu\nu$, and...