Double-Regge-pole analysis ofK+n→K+π−p at 9 GeVc

We report on a study of the diffraction dissociation of the neutron from the reaction $K^{+}n\to K^{+}{\pi }^{-}p \mathrm{at} 9 \frac{\mathrm{GeV}}{c}$. The data are compared with a double-Regge-pole-exchange model of Berger. Good agreement with our data is obtained for distributions in $M\left(p{\pi }^{-}\right)$, $M\left(K^{+}{\pi }^{-}\right)$, $t_{\mathrm{np}}$, the Toller angle, the Treiman-Yang angle, the proton production angle, and the Van Hove angle. The $p\pi$ mass dependence of $t_{\mathrm{KK}}$ is also well described.