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

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

1998-11-05

arxiv.org/abs/hep-ph/9811251v1

Phys.Rev. D60 (1999) 035004

Physics

High Energy Physics

High Energy Physics - Phenomenology

7 pages, 1 eps figure

Scientific paper

10.1103/PhysRevD.60.035004

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 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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