AI 中文总结
该研究分析Gogny-D1S力中引入的微扰张量项对超重核自发裂变半衰期的影响，发现其降低第一裂变势垒高度，使理论预测更贴合实验数据。
AI 中文摘要
基于平均场哈特利-福克-博戈留波夫近似及对裂变势垒隧穿的半经典描述的标准微观裂变描述，被用于分析在著名的Gogny-D1S力中引入（微扰）张量项对自发裂变半衰期的影响。研究对从锘（nobelium）到鐽（darmstatium）的一系列超重偶偶核同位素开展了计算。结果表明，张量项仅影响第一裂变势垒的高度，而配对性质及集体惯性基本不受影响。由于势垒高度降低，包含张量项得到的自发裂变寿命显著小于不含该张量项的结果，使理论预测与实验数据更为吻合。
英文摘要
The standard microscopic description of fission, based on the mean-field Hartree-Fock-Bogoliubov approximation and a semi-classical description of tunneling through the fission barrier, has been used to analyse the impact of introducing a (perturbative) tensor term along with the well known Gogny-D1S force in the spontaneous fission half-lives. Calculations in a series of even-even isotopes of superheavy nuclei ranging from nobelium to darmstatium have been carried out. The results show that the tensor term only impacts the height of the first fission barrier and leaves mostly unaffected the pairing properties and therefore the collective inertias. As a consequence of the reduction in the barrier height, the spontaneous fission lifetimes obtained by including the tensor term are significantly smaller than the ones without it bringing the theoretical predictions in closer agreement with experimental data.
Comments15 pages, 9 figures
Journal refJ. Phys. G. 53 075109 (2026)
