Non-statistical branching ratios for excitation of (np2(n+1)s) 1.3P degrees 0,1,2 states in noble gases
Non-statistical branching ratios for excitation of (np2(n+1)s) 1.3P degrees 0,1,2 states in noble gases
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稀有气体中 (np2(n 1)s) 1.3P 度 0,1,2 态激发的非统计支化比
DOI：
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发表时间：
1992
期刊：
影响因子：
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通讯作者：
D. Madison
中科院分区：
文献类型：
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作者：
K. Bartschat;D. Madison
以前的相对论DWBA计算的基础上的泡利形式的薛定谔方程已被扩展到激发的（np 5（n+1）s）1.3Po1状态和亚稳态（np 5（n+1）s）3Po0.2状态的氖，氩，氪和氙。几个碰撞能量的结果，并与实验进行比较。在协议与实验证据，强烈偏离统计分支比5：1的横截面中的激发态与J=2和j=0被发现的氙目标。当比较相对论和非相对论DWBA计算，它变得很明显，这些影响主要是由于T-运营商的能量依赖性，因为不同的精细结构的激发能，而不是明确的自旋相关的条款，在弹-靶相互作用。
Previous relativistic DWBA calculations based on the Pauli form of the Schrodinger equation have been extended to excitation of the (np5(n+1)s)1.3Po1 states and the metastable (np5(n+1)s)3Po0.2 states of neon, argon, krypton and xenon. Results for several collision energies are presented and compared with experiment. In agreement with experimental evidence, strong deviations from the statistical branching ratio of 5:1 in the cross sections for excitation of the states with J=2 and j=0 were found for the xenon target. When comparing relativistic and non-relativistic DWBA calculations, it becomes evident that these effects are mainly due to the energy dependence of the T-operator because of different fine-structure excitation energies rather than to explicitly spin-dependent terms in the projectile-target interaction.