标题： 6,7Li入射核与重变形232Th靶的库仑-核破裂作用 显示英文标题

标题： Role of Coulomb-nuclear breakup of 6,7Li projectiles with heavy deformed 232Th target

摘要： 在非球形核232Th与6,7Li的破裂过程中，库仑和核耦合及其干涉效应的重要性已被评估。 连续离散耦合通道（CDCC）计算以非标准方式执行，在接近库仑屏障的能量下，使用短程虚势来描述碎片-靶相互作用。 采用短程虚势的当前计算比使用标准系统值（0.78xWSPP）来描述弹性散射的计算更符合实验弹性散射角分布。 包括232Th的非弹性激发显示，在低于屏障能量的弹性散射中相比较高入射能量显示出显著的耦合效应。 随后，CDCC框架被用于分别分析核、库仑和总破裂预测。 在各种能量下，6Li+232Th系统的破裂截面大于7Li+232Th系统的破裂截面。 本研究预测在涉及6Li和7Li弹核与变形的232Th靶的破裂过程中存在破坏性的库仑-核干涉。 此外，将破裂反应截面与在屏障能量附近实验测量的融合截面进行了比较，针对6,7Li+232Th系统。 显示英文摘要

摘要： The significance of both Coulomb and nuclear couplings and their interference effects in the breakup processes of 6,7Li with a non-spherical nucleus 232Th has been evaluated. The continuum discretized coupled channel(CDCC) calculations are carried out in a nonstandard way, using short-range imaginary potentials for the fragment-target interaction at energies close to the Coulomb barrier. The present calculations employing short-range imaginary potentials exhibit better agreement with the experimental elastic scattering angular distributions than those using standard systematic value (0.78xWSPP ) used to describe elastic scattering. Including the excitation of the 232Th inelastic shows significant coupling effects on the elastic scattering below the barrier energies compared to higher incident energies. Subsequently, the CDCC framework was used to analyze the nuclear, Coulomb, and total breakup predictions separately. The breakup cross sections for the 6Li+232Th system are greater than those for the 7Li+232Th system across various energies. The present study predicts destructive Coulomb-nuclear interference in the breakup processes involving both 6Li and 7Li projectile nuclei with the deformed 232Th target. Additionally, the breakup reaction cross-sections are compared with experimentally measured fusion cross-sections near the barrier energies for both 6,7Li+232Th systems.