Search for the signature of a halo structure in the p((sup 6)He,(sup 6)Li)n reaction

摘要

The elastic scattering p((sup 6)He,(sup 6)He)p and charge exchange reaction p((sup 6)He,(sup 6)Li)n have been measured in reverse kinematics with a secondary (sup 6)He beam. The angular distributions for these reactions were obtained. In the case of the charge exchange reaction, the ratio of the cross section for the Gamow-Teller transition to the ground state, and for the Fermi transition to the isobaric analog state is a measure of the relative strength of the two components of the exchange interaction. This ratio is found compatible with existing systematics for stable T=1 nuclei, and no clear signature of a halo structure was found in the present data. (author). 22 refs. (Atomindex citation 28:039122)