Hard-Meson Current Algebra,Kl3Decay, and Chiral Symmetry Breaking

Abstract

We calculate the $K_{l3\mathrm{}}$ decay parameters on the basis of the maximal information obtainable from hard-meson current algebra in the single-particle saturation approximation. The calculation includes fully the effects of the kappa meson reported recently by Trippe et al. It is noted that our results automatically lead to those following from chiral SU(3)⊗SU(3) broken with (3*,3) ⊕ (3,3*).