Kaon Spontaneous CP Violation Reevaluated

Abstract

The CP parameters $ϵ$ and ${ϵ}^{\prime }/ϵ$ 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 ${ϵ}^{\prime }/ϵ$ 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 ${ϵ}^{\prime }/ϵ$ is $10^{-4}$ or greater in magnitude, it will mean that the present approach to spontaneous CP violation is excluded.

Comments: LaTeX 9 pages, 4 Figures