用壳模型和势模型理论研究天体物理重要的8Li中子俘获性质。3种有效相互作用,SFO、PSDMK2和PSDWBP用于计算谱因子和反应宽度。对从8Li到9Li的第1个连续态的共振俘获,这3种有效相互作用给出类似的中子分宽度,与实验结果相比一致性好。但计算的光子宽度比前人的估计小过5倍。在高温条件下这将产生实质性的差异,即直接俘获机制仍然占主导优势。计算的截 Astrophysics Important 8Li Neutron Capture Properties Using Shell Model and Potential Model Theory. Three effective interactions, SFO, PSDMK2 and PSDWBP were used to calculate the spectral factors and reaction width. Resonance capture of the first continuous state from 8Li to 9Li gave similar neutron separation widths with good agreement with the experimental results. However, the calculated photon width is less than 5 times smaller than previous estimates. This produces a substantial difference at high temperatures, where the direct trapping mechanism still dominates. Calculated cut