Kl3Decays in a Two-Component Theory of Partially Conserved Axial-Vector Current

$K_{l3\mathrm{}}$ decays are discussed in an explicit model of PCAC (partially conserved axial-vector current) involving the pion and a heavier particle, the ${\pi }^{\prime }$. This model has recently been shown to be capable of yielding the correct ${\pi }^0\to 2\gamma$ decay rate from the Adler PCAC anomaly using one triplet of fractionally charged Gell-Mann-Zweig quarks, as well as reproducing all the "good" results of strong PCAC. In this paper we extend the model to treat $K_{l3\mathrm{}}$ decays and compare it to the earlier Brandt-Preparata theory of weak PCAC.