Decay rate asymmetry in $B\to X_s\gamma$ as a signature of supersymmetry

Mayumi Aoki, Gi-Chol Cho, Noriyuki Oshimo

In the supersymmetric standard model, the radiative $B$-meson decay $B\to X_s\gamma$ could receive a large contribution from a new source of flavor-changing neutral current, which als…