Excited Strange Mesons and Their Decays in a Chiral U(3)×U(3) Lagrangian.

We bosonize the Nambu-Jona-Lasinio quark model with separable nonlocal interactions in order to derive a chiral U(3) × U(3) Lagrangian, containing, besides the usual meson fields, their first radial excitations. The spontaneous breaking of chiral symmetry is governed by the Nambu-Jona-Lasinio gap equation. The first radial excitations of the kaon, K[sup *], and φ are described with the help of two form factors. The decays K[sup *]' → ρK, K[sup *]' → K[sup *]π,K[sup *]' → Kπ, φ', → K[sup *]K, φ' → &Kmacr;K, K' →Kρ, K' → K[sup *]π, and K' → K2π are considered, and a qualitative agreement of our results with the experimental data is found. [ABSTRACT FROM AUTHOR]