364 research outputs found

    Javakheti One Year after the August War

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    CP violation and gravity as the weakest force

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    We argue that CP violation has rather dramatic impact on the "gravity as the weakest force" conjecture. Namely we find that new ultraviolet scale must be Λ≲θg3MP\Lambda \lesssim \theta g^3 M_P, where θ\theta is an effective parameter describing CP violation and gg is the gauge coupling constant. The bound implies that CP-conserving limit is discontinuous, and possibly indicates that the class of effective theories with strict CP conservation is inconsistent with a fundamental theory incorporating quantum gravity. At the same time, the mass hierarchy problem can be explained due to the smallness of the CP violation, θ∼10−15\theta \sim 10^{-15} or so.Comment: 4 page
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