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arxiv: hep-ph/9803416 · v1 · pith:T3O7VH4Znew · submitted 1998-03-21 · ✦ hep-ph

Kaon Spontaneous CP Violation Reevaluated

classification ✦ hep-ph
keywords epsilonspontaneousmodelviolationapproachasponbreakingcalculated
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The CP parameters $\epsilon$ and $\epsilon'/\epsilon$ are calculated in the aspon model of spontaneous CP violation, a model which solves the strong CP problem. A new range for the scale of spontaneous breaking of CP is found. It is shown that $\epsilon'/\epsilon$ is suppressed by $\sim x^2 v^2/(\kappa^2 \sin^5 \theta_C) \sim 5 \times 10^{-3}$ relative to the Standard Model. If experiment finds that $\epsilon'/\epsilon$ is $10^{-4}$ or greater in magnitude, it will mean that the present approach to spontaneous CP violation is excluded.

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