Study for the s-wave in Li with analysis of cross-sections
نویسندگان
چکیده
We study the effect of s-wave cross-sections in 4He+n and 9Li+n elastic scattering reactions by using the Jost function method (JFM). In 5He (4He+n), the s-wave pole of the S-matrix does not contribute so much to the total cross-section. On the other hand, in 10Li (9Li+n), the s-wave component can not be neglected due to a relatively strong attraction for the s-waves of the core+n potential. It is shown that the 9Li-n potential, which is microscopically derived by taking into account the pairing-blocking effect for a p-wave neutron, reproduces the s-wave pole close to the 9Li+n threshold and strongly enhances the s-wave cross-section near the threshold.
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