Radiative and Electroweak Rare B Decays

TL;DR

This paper reviews recent experimental findings on rare B meson decays involving radiative and electroweak processes, highlighting their sensitivity to new physics beyond the Standard Model and recent key observations.

Contribution

It summarizes the latest experimental results and reports the first observation of the decay B --> K* l+ l-, advancing the search for new physics in B decays.

Findings

First observation of B --> K* l+ l- decay

Experiments at Belle, BaBar, CLEO, CDF, D0 contributed data

Rare decays are sensitive probes for new particles beyond the Standard Model

Abstract

This report summarizes the latest experimental results on radiative and electroweak rare B meson decays. These rare decay processes proceed through the flavor changing neutral current processes, and thus sensitive to the postulated new particles in the theories beyond the Standard Model. Experiments at e+ e- colliders, Belle, BaBar and CLEO, have been playing the dominant role, while the CDF and D0 experiments have just started to provide new results from Tevatron Run-II. The most significant achievement is the first observation of the decay B --> K* l+ l-, which opens a new window to search for new physics in B meson decays.