CP Violation in B_s Mixing in the SUSY SU(5) GUT with Right-handed Neutrinos

Details CP Violation in B_s Mixing in the SUSY SU(5) GUT with Right-handed Neutrinos CP Violation in B_s Mixing in the SUSY SU(5) GUT with Right-handed Neutrinos

2008-05-21

arxiv.org/abs/0805.3327v3

Phys.Lett.B669:301-305,2008

Physics

High Energy Physics

High Energy Physics - Phenomenology

13 pages, 13 figures, version to appear in PLB

Scientific paper

10.1016/j.physletb.2008.10.011

It is recently announced by the {\bf Ut}{\it fit} collaboration that the CP phase of the $B_s$ mixing amplitude, $\phi_{B_s}$, deviates more than $3 \sigma$ from the standard-model prediction. In this paper we discuss how large correction to $\phi_{B_s}$ is possible in the supersymmetric SU(5) ground unified model (SUSY SU(5) GUT) with right-handed neutrinos. Here, we assume the supergravity-like boundary condition for the SUSY-breaking terms. We found that the 95% probability region derived by the {\bf Ut}{\it fit} collaboration is marginal in this model.

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