Effect of SUSY Phases on the B^0_d-B^^-^0_d Mixing in the Minimal Supergravity Model : Particles and Fields

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概要

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• We investigate the effect of SUSY phases (θ_A and θ_μ) on the B^0_d-B^^-^0_d mixing in the minimal supergravity model. It is known that the complex phase θ_A = arg(A) (A is the universal coefficient of the trilinear scalar couplings) is essentially unconstrained by the electric dipole moment experiment, while the phase θ_μ = arg(μ) (μ is the supersymmetric Higgsino mass) is strongly constrained to zero. We find that θ_A does not affect the phase of the B^0_d-B^^-^0_d mixing matrix element M_<12>(B) by numerical analysis of the renormalization group equations. This implies that the measurement of the B^0_d-B^^-^0_d mixing at the future B-factory could give direct information on the parameters of the CKM matrix even in the framework of the minimal supergravity model with the SUSY phase θ_A.

• 1997-11-25

著者

• Nihei Takeshi

  Theory Group High Energy Accelerator Reteach Organization Kek

• NIHEI Takeshi

  Institute for Cosmic Ray Research, University of Tokyo

• NIHEI Takeshi

  Theory Group,High Energy Accelerator Reteach Organization,KEK

関連論文

• Effect of SUSY Phases on the B^0_d-B^^-^0_d Mixing in the Minimal Supergravity Model : Particles and Fields
• The Two Loop Long Range Effect on the Proton Decay Effective Lagrangian

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