Revisiting electroweak radiative corrections to b → sll in SMEFT

We revisit electroweak radiative corrections to Standard Model Effective Field Theory (SMEFT) operators which are relevant for the B-meson semileptonic decays. The one-loop matching formulae onto the low-energy effective field theory are provided without imposing any flavor symmetry. The on-shell conditions are applied especially in dealing with quark-flavor mixings. Also, the gauge independence is shown explicitly in the R-xi gauge.

Automated summary

This study revisits electroweak radiative corrections to Standard Model Effective Field Theory (SMEFT) operators relevant to B-meson semileptonic decays. One-loop matching formulas onto the low-energy effective field theory are provided without imposing any flavor symmetry, showcasing gauge independence in the R-xi gauge especially when dealing with quark-flavor mixings.