Factorization,ωCrossover, Polarization, and Finite-Energy Sum Rules for Kaon-Nucleon Scattering

Abstract

$\mathrm{KN}$ finite-energy sum rules, with phase-shift analyses as input, are evaluated to determine the $t$ dependence of the relevant Regge-exchange amplitudes. The spin nonflip contributions are similar to those deduced from high-energy Regge fits; however, the spinflip contributions of the high-energy fits are inconsistent with the sum-rule results. The implications for polarization and $K^{+}n$ charge exchange are discussed.