Abstract

The Standard Model of particle physics (SM) has been challenged in recent years by measurements from the LHCb collaboration involving rare B meson decays. These processes, involving a b → s ll quark transition, are highly suppressed, happening less than once in a million decays. Thus, they offer an ideal testing ground for the flavour sector of the SM, as any enhancements in their rates would be a smoking gun for New Physics (NP) phenomena. So far, most of these discrepancies have been reported in decays involving muons, while processes involving electrons are still largely unexplored experimentally. If NP is behind the current anomalies, b → s ee decays, with their unique experimental signatures, can independently probe this. This talk will cover the experimental challenge of decays with electrons in their final state, focussing on angular analyses, and how they can improve our understanding of the so-called “flavour anomalies”.