Large Supersymmetric Contribution to CP Asymmetry of B_d \to ϕK_S from Left-Handed Squark Mixing

Abstract

Supersymmetric contribution to the CP asymmetry of B_d \to ϕK_S is re-examined. It is emphasized that our analysis takes into account the recently found constraint from the mercury electric dipole moment, in addition to the well-known constraint from the branching ratio of b \to s γ. We show that, despite these constraints, the CP asymmetry can considerably deviate from the Standard Model prediction, if the CP-odd flavor mixing comes from left-handed squarks. Alignment mechanism of sfermion masses and mixing may imprint the required flavor mixing at high energy scale.

10 pages, 2 figures

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Cited by in corpus (7)

• B_s^0 - \bar{B}_s^0 Mixing in Leptophobic Z^\prime Model
• CP asymmetries and branching ratios of B --> K πin supersymmetric models
• B_s^0-\bar{B}_s^0 mixing and B -> πK decays in stringy leptophobic Z^\prime
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• Measurement of Squark Flavor Mixings in Supersymmetric Models at Super B Factory
• New Constraint on Squark Flavor Mixing from 199Hg EDM