Prediction of Re ɛ fromK ₁₃ decays in an extended cabibbo model

Abstract

With the help of an extended Cabibbo model for the weak hadronic vector current which includes the 10 and ¯10 representations to account for possibleΔS=-ΔQ transitions, a prediction is made for the quantity (1-¦x¦²)/¦1−x¦² wherex=A(K⁰→π^üe⁻¯v)/A(¯K⁰→π^üe⁻¯v) using the experimental branching ratio Γ(K⁻→ π⁰e⁻¯v/Γ(K ⁰_L →π^üe⁻¯v). From the known charge asymmetry in the decay of the long lived kaon one then obtains Reɛ.