CP violation in Bd ϕKS in SUSY GUT with right-handed neutrinos
Takeo Moroi
Abstract
CP violation in the Bd system is discussed in the supersymmetric grand unified theory (GUT) with the right-handed neutrinos. Above the GUT scale, the right-handed down-type squarks couple to the right-handed neutrinos. Due to the renormalization group effect, flavor violations in the lepton sector may be transfered to the right-handed down-type squark mass matrix, which affects the CP violation in the B decay. Taking into account this effect, we compare the CP violation in Bd ψKS and Bd ϕKS processes. We will find that a significant difference is possible between the CP violating phases in two decay processes.
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