Semi-relativistic calculations for the photoionization of neutral argon from its four lowest J-states

Mohan M; Jha AKS; Singh N

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Semi-relativistic calculations for the photoionization of neutral argon from its four lowest J-states

机译：从四个最低J态对中性氩光电离的半相对论计算

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Semi-relativistic calculations are carried out for the photoionization of neutral argon from its ground state 3s(2)3p(6) S-1(0) and the lowest three excited levels 3s(2)3p(5)(2P(0)) 4s(3)P(0) (2), 3s(2)3p(5)(P-2(0)) 4s P-3(1)0 and 3s(2)3p(5)(P-2(0)) 4s P-3(0) 0, using the semi-relativistic Breit-Pauli approximation. Configuration interaction (CI) wavefunctions are used to represent the lowest 12 target states of the Ar II ion retained in the R-matrix expansion. The Rydberg series 3s3p(6) S-2(1/2){np[1/2](1), np[3/2] 1}, J = 1 degrees of autoionizing resonances formed in the photoionization process of ground state 3s(2)3p(6) S-1(0), just below 3s3p(6) 2S(1/2) threshold of Ar II, are identified and their resonance positions and effective quantum numbers are reported. Excellent agreement with previously published resonance positions and effective quantum numbers is observed. Further, new results for photoionization cross-sections from excited states of Ar, involving clusters of Feshbach resonances converging to different thresholds of Ar II, are predicted.

机译：从中性氩的基态3s（2）3p（6）S-1（0）和最低的三个激发能级3s（2）3p（5）（2P（0））进行半相对论计算）4s（3）P（0）（2），3s（2）3p（5）（P-2（0））4s P-3（1）0和3s（2）3p（5）（P-2）（0））4s P-3（0）0，使用半相对论的Breit-Pauli逼近。构型相互作用（CI）波函数用于表示保留在R矩阵扩展中的Ar II离子的最低12个目标状态。 Rydberg级数3s3p（6）S-2（1/2）{np1 / 2（1），np [3/2] 1}，J = 1在基态光电离过程中形成的自电离共振识别出刚好低于Ar II的3s3p（6）2S（1/2）阈值的3s（2）3p（6）S-1（0），并报告了它们的共振位置和有效量子数。观察到与先前公开的共振位置和有效量子数极好的一致性。此外，预测了来自Ar激发态的光电离截面的新结果，其中包括收敛于Ar II不同阈值的Feshbach共振簇。

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《Physica Scripta: An International Journal for Experimental and Theoretical Physics》 |2006年第6期|共6页
作者
Mohan M; Jha AKS; Singh N;
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正文语种 eng
中图分类物理学;
关键词
R-MATRIX METHOD; GROUND-STATE; OPACITY CALCULATIONS; GENERAL PROGRAM; ELECTRON-IMPACT; ATOMIC DATA; TRANSITIONS; EXCITATION; NEON; AR;

机译：R-矩阵法;基态;不透明度计算;一般程序;电子碰撞;原子数据;转变;激发;氖;AR;

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1. Semi-relativistic calculations for the photoionization of neutral argon from its four lowest J-states [J] . Mohan M, Jha AKS, Singh N Physica Scripta: An International Journal for Experimental and Theoretical Physics . 2006,第6期

机译：从四个最低J态对中性氩光电离的半相对论计算
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Semi-relativistic calculations for the photoionization of neutral argon from its four lowest J-states

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