Instantons and the $\Delta I=1/2$ Rule

Abstract

The instanton induced interaction leads to a significant enhancement of the $A_0$ weak amplitude determining the $\Delta I=1/2$ rule, through the contribution of operators with dimension d=9, as we show in the weak $K\to \pi \pi$ decay.

4 pages, 2 figures, Revtex; final version to appear in Phys.Rev.Lett

References in corpus (1)

• A New Prediction for Direct CP Violation ε'/εand ΔI = 1/2 Rule

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