Strength of the $\hat{I}\pounds$ Single-Particle Potential in Nuclei From Semiclassical Distorted Wave Model Analysis of $(\ddot{I}{€}^{-},K^{+})$ Inclusive Spectrum

Abstract

Semiclassical distorted wave model is developed to describe $(\ddot{I}{€}^{-},K^{+})$ inclusive spectra related to $\hat{I}{\pounds }^{-}$-formation measured at KEK with $p_{\ddot{I}}€=1.2$ GeV/c. The shape and magnitude of the spectrum on ${}^{28}$Si target are satisfactorily reproduced by a repulsive $\hat{I}\pounds$-nucleus potential, the strength of which is of the order of 30$\sim$50 MeV. This strength is not so strong as more than 100 MeV suggested by the estimation presented in the report of the experiment.

6 pages, to be published in Prog. Theor. Phys