Vibrationally resolved capture cross section in p + H2 collision

被引：3

作者：

Igarashi, A. ^{[1
]}

Gulyas, L. ^{[2
]}

机构：

[1] Univ Miyazaki, Fac Engn, Miyazaki 8892192, Japan

[2] Hungarian Acad Sci, Inst Nucl Res ATOMKI, POB 51, H-4001 Debrecen, Hungary

来源：

JOURNAL OF PHYSICS B-ATOMIC MOLECULAR AND OPTICAL PHYSICS | 2019年 / 52卷 / 07期

基金：

匈牙利科学研究基金会;

关键词：

electron capture; ion impact; cross section; ELECTRON-CAPTURE; DISSOCIATIVE IONIZATION; PROTONS; H-2(+); IMPACT; EXCITATION;

D O I：

10.1088/1361-6455/ab065c

中图分类号：

O43 [光学];

学科分类号：

070207 ; 0803 ;

摘要：

The electron-capture process p + H-2 -> H(1s) + H-2(+) (1s sigma) is described using distorted-wave-Born models by considering the influence of the vibrational motions of H-2 and H-2(+) within the framework of the Born-Oppenheimer approximation. Non-dissociative and dissociative capture cross sections are calculated for incident proton energies E-C = 20-300 keV. The vibrational distribution of H-2(+) (1s sigma) is compared with that of the Franck-Condon factor. They are in fairly good agreement for E-C < 100 keV, and discrepancies arise for higher E-C.

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页数：8

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