论文标题
通过多核转移反应产生同质子碰撞中富含中子的阳离子核素
Production of neutron-rich actinide nuclides in isobaric collisions via multinucleon transfer reactions
论文作者
论文摘要
我们已经计算了$^{208} $ OS的多核转移反应,$^{208} $ pt,$^{208} $ hg,$^{208} $ pb,$^{208} $ po,$^{208} $^{232} $ th和$^{248} $ cm在dinuclear System Model中,系统地系统地。结果与可用的实验数据非常吻合。已经彻底研究了库仑效应和壳对这些反应中肌动剂产生的影响。反应中的势能表面和总动能质量分布$^{208} $ hg,$^{208} $ pb和$^{208} $ po在$^{248} $ cm和$ cm和$^{232} $上分别计算和分析。发现PES和TKE光谱表现出多核转移反应中的片段形成机理。同源效应和壳效应显示在PES和TKE中。 Multinucleon转移产品的生产横截面高度取决于质量$ a = 208 $的Isobar弹丸。具有较大N/Z比率的Isobar弹丸有利于创建富含中子的目标片段。较大电荷诱导产物的异橡胶弹丸倾向于转移到富含质子的区域。在肌动蛋白同位素的生产横截面中显示了与壳效应结合的库仑电势。根据放射性弹丸诱导的反应,我们预测了核滴线周围的大量新肌动蛋白同位素,甚至可以进入超高的核区域。
We have calculated the multinucleon transfer reactions of $^{208}$Os, $^{208}$Pt, $^{208}$Hg, $^{208}$Pb,$^{208}$Po, $^{208}$Rn, $^{208}$Ra,$^{132,136}$Xe bombarding on $^{232}$Th and $^{248}$Cm at Coulomb barrier energies within the dinuclear system model, systematically. The results are in good agreement with the available experimental data. Coulomb effect and shell effect on production of actinides in these reactions have been investigated thoroughly. Potential energy surface and total kinetic energy mass distributions in the reactions $^{208}$Hg, $^{208}$Pb and$^{208}$Po colliding on $^{248}$Cm and $^{232}$Th are calculated and analyzed, respectively. It is found that PES and TKE spectra manifest the fragment formation mechanism in the multinucleon transfer reactions. The isospin effect and shell effect are shown in PES and TKE. Production cross-sections of multinucleon transfer products are highly dependent on the isobar projectiles with mass number $A=208$. The isobar projectiles with larger N/Z ratios are favorable for creating the neutron-rich target-like fragments. The isobar projectiles with larger charge number induced products tend to shift to proton-rich region. Coulomb potential coupled to shell effect is shown in production cross-sections of actinide isotopes. Based on the radioactive projectiles induced reactions, we have predicted massive new actinide isotopes around nuclear drip lines, even could access the superheavy nuclei region.