Autoionization decay and radiative decay for doubly excited 1Po resonance states in H- and Ps- ions

被引：0

作者：

Wang, Yang ^{[1
]}

Pei, Si-Qi ^{[1
]}

Kar, Sabyasachi ^{[1
]}

Ho, Yew Kam ^{[2
]}

机构：

[1] Harbin Inst Technol, Sch Phys, Harbin 150001, Peoples R China

[2] Acad Sinica, Inst Atom & Mol Sci, Taipei 106, Taiwan

来源：

CHEMICAL PHYSICS LETTERS | 2022年 / 803卷

关键词：

Autoionization decay; Radiative decay; Negative ions; Variational methods; Correlated exponential wave functions; SHAPE RESONANCES; CROSS-SECTION; NEGATIVE-ION; PHOTODETACHMENT; POSITRONIUM; ENERGIES; DENSITY; N=3;

D O I：

10.1016/j.cplett.2022.139873

中图分类号：

O64 [物理化学（理论化学）、化学物理学];

学科分类号：

070304 ; 081704 ;

摘要：

The autoionization decay (AD) and radiative decay (RD) for doubly excited P-1(o) resonance states in H- and Ps(-) are studied using correlated exponential wavefunctions based on the variational methods. To trace the resonance poles from Ps(-) to H-, the nuclear mass is varied from one unit to infinitely heavy. Resonance positions, widths related to AD rates, oscillator strengths, the ratios of oscillator strengths between the Feshbach and shape resonances (FSR), RD rates for the lowest two FSR in the P-1(o) spectrum, are reported. Few results are new, and others are comparable with the available theoretical and experimental data.

引用

页数：7

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