The Mass-Dependent Effective Interactions Applied To Nuclear Reactions

Australian Journal of Basic and Applied Sciences

article

Isaiah Ochala1 ; Joseph O. Fiase ; Vivian O. Obaje ; Virginia I. Sule

关键词: Mass-dependent;    Effective interactions;    B’3Y-Fetal;    Double folding;    Nuclear reactions;   

DOI  :  10.22587/ajbas.2021.15.10.1

学科分类：社会科学、人文和艺术（综合）

来源: AENSI

【 摘 要 】

Two new mass-dependent M3Y-type effective interactions derived on the basis of the lowest order constrained variational (LOCV) approach are applied to nuclear reactions in this paper. These effective interactions were derived from nuclear systems with mass numbers A = 16 and 24 and called the B3Y-Fetal and B’3Y-Fetal respectively. Principally, nuclear reaction is used in this work as a second level of viability test to determine the effect of mass dependence on the form and character of the effective interactions. The real folded potentials associated with the B3Y-Fetal and B’3Y-Fetal have been computed within the framework of double folding model, with the former as the standard for comparison. Accordingly, the real folded potential derived from the B’3Y-Fetal in its DDM3Y1 density-dependent version (DDB’3Y1-Fetal potential) computed within the framework of the double folding model at the incident energies of 160, 480, 960 and 1440 MeV at smaller inter-nuclear distances has been found to be -345, -289, -212 and -155 MeV, respectively, in magnitude in comparison with -352, -292, -217 and -156 MeV respectively obtained with the DDB3Y1-Fetal real folded potential at the same incident energies, showing the B3Y-Fetal to be stronger at smaller inter-nuclear distances than the B’3Y-Fetal effective interaction. The results obtained in this work have also shown the B’3Y-Fetal-based folded potential to have attractive direct and exchange components which combine to produce an attractive total real folded potential, whereas the real folded potential derived from the B3Y-Fetal effective interaction has a repulsive direct component, which combines with a large attractive exchange component to form an attractive total real folded potential. Essentially, this shows that the effect of mass dependence on the form and character of the B3Y-Fetal and B’3Y-Fetal lies in the direct components of their optical potentials.

【 授权许可】

Unknown