Revisiting electroweak radiative corrections to $b\to s\ell \ell$ in SMEFT

Abstract

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.

Comments: 29 pages, 9 figures