Rare Leptonic B and b -> s l+ l- Decays at B-factories

TL;DR

This paper reviews recent experimental results from BABAR and Belle on rare B-meson decays involving flavor-changing neutral currents, providing insights into potential new physics beyond the Standard Model.

Contribution

It summarizes the latest measurements and searches for rare leptonic B and b -> s l+ l- decays, highlighting experimental progress and current status.

Findings

Measurements of isospin asymmetry and lepton forward-backward asymmetry in B -> K* l+ l-

Searches for B -> pi l+ l- and B -> K(*) nu anti-nu decays

Status updates on B0 -> l+ l- and B+ -> l+ nu searches

Abstract

We review recent results from the BABAR and Belle experiments on rare electroweak B-meson decays, with emphasis on those occurring through flavor changing neutral current interactions of the type b -> s l l. The recent results include measurements of the isospin asymmetry and lepton forward-backward asymmetry in B -> K* l+ l- decays from BABAR, a search for B -> pi l+ l- from Belle, and searches for B \to K(*) nu anti-nu from BABAR. We also briefly review the status of B0 -> l+ l- and B+ -> l+ nu searches.