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Single-electron transfer from helium atoms to energetic multiply-charged nuclei
Atomic Data and Nuclear Data Tables ( IF 1.8 ) Pub Date : 2022-07-22 , DOI: 10.1016/j.adt.2022.101530
D. Delibašić , N. Milojević , I. Mančev , Dž. Belkić

The three-body boundary-corrected continuum intermediate state (BCIS-3B) method is employed to compute single-electron capture cross sections. These data are for collisions in which a target helium atom in its ground state He(1s2) is impacted by multiply charged nuclei (specifically H+,He2+,Li3+,Be4+,B5+,C6+,N7+,O8+,F9+). Intermediate and high projectile energies are considered (20 keV/amu-3 MeV/amu). The obtained results are tabulated for total cross sections (state-selective Qnlm as well as state-summed Qnl, Qn and QΣ). Cross section Qnlm corresponds to a fixed triple of the hydrogenlike quantum numbers {n,l,m}. In Qnl,Qn and QΣ, the sums over m[l,l],l[0,n1] and n[1,nmax] are carried out, respectively. For n>nmax in QΣ, the Oppenheimer n3 scaling rule is adopted. The values of nmax are set to 4 (for H+,He2+,Li3+), 5 (for Be4+), 6 (for B5+) and 7 (for C6+,N7+,O8+,F9+). Exhaustive comparisons of the theoretical findings for QΣ with the corresponding experimental data are performed. It is determined that the BCIS-3B method is in excellent agreement with the available measurements. The present database for the examined capture processes is deemed to be of notable practical usefulness in versatile applications of particular relevance to plasma physics, astrophysics, fusion research and ion therapy in medicine.



中文翻译:

从氦原子到高能多电荷原子核的单电子转移

采用三体边界校正连续介质中间态 (BCIS-3B) 方法计算单电子捕获截面。这些数据用于碰撞,其中目标氦原子处于基态(1s2)受到多电荷核的影响(特别是H+,2+,3+,4+,5+,C6+,ñ7+,8+,F9+)。考虑了中等和高射弹能量(20 keV/amu-3 MeV/amu)。获得的结果列在总横截面列表中(状态选择性nl以及状态总和nl, nΣ)。横截面nl对应于类氢量子数的固定三元组{n,l,}.nl,nΣ,总和[-l,l],l[0,n-1]n[1,n最大限度]分别进行。为了n>n最大限度Σ,奥本海默n-3采用缩放规则。的价值观n最大限度设置为 4 (对于H+,2+,3+), 5 (对于4+), 6 (对于5+) 和 7 (对于C6+,ñ7+,8+,F9+)。理论结果的详尽比较Σ进行相应的实验数据。确定 BCIS-3B 方法与可用测量值非常一致。用于检查的捕获过程的当前数据库被认为在与等离子体物理学、天体物理学、融合研究和医学离子疗法特别相关的多功能应用中具有显着的实际用途。

更新日期:2022-07-22
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