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arXiv · hep-ph/9811251

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

Mayumi Aoki·Gi-Chol Cho·Noriyuki Oshimo
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Abstract

In the supersymmetric standard model, the radiative $B$-meson decay $B \to X_s γ$ could receive a large contribution from a new source of flavor-changing neutral current, which also violates CP invariance. The CP-conjugate processes then may sizably differ in decay width. If a new CP-violating phase is not suppressed, this decay rate asymmetry can be significantly larger than the prediction by the standard model, possibly detectable at B factories. Such a large asymmetry may be implied by the measured branching ratio which is consistent with the standard model.

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Mayumi Aoki, Gi-Chol Cho, Noriyuki Oshimo. 1998-11-05. Decay rate asymmetry in $B \to X_s γ$ as a signature of supersymmetry. https://doi.org/10.1103/physrevd.60.035004

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