Phase shift analysis for nuclear scattering

Abstract

The purpose of this work is to discuss the problems of phase shift analysIs and to construct a method for resohing these problems by U5lllg the zeros of scattering amplitude, in par\lcular, this work traces Yukawa potential whIch desCribes nucleonnucleon scattenng First, the phase shifts and the differential cross-sectIOns are computed and then compared wllh those of the Born results The comparison shows a fair agreement between the two methods wh,ch results 111 fedmg tree to compute the zeros of scattenng amplitude The zero trajectories arc then displayed graphically in the momentum transfer plane A study of the nature oflhe lero trajectories show that the ambiguities of phase shift analysis are reduced to some extent for weak potential 5lrengths.