Instantons and the DeltaI = 1/2 rule.
The instanton-induced interaction leads to a significant enhancement of the Ao weak amplitude determining the DeltaI = 1/2 rule, through the contribution of operators with dimension d = 9, as we show in the weak K--> pi(pi) decay.
Kochelev
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Departament de Física Teòrica and Institut de Física Corpuscular, Universitat de València-CSIC, Spain.
Vento
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