Rotationally inelastic cross sections, rates and cooling times for para-H2+, ortho-D2+ and HD+ in cold helium gas

被引：5

作者：

Vera, Mario Hernandez ^{[1
]}

Schiller, Stephan ^{[2
]}

Wester, Roland ^{[1
]}

Gianturco, Francesco Antonio ^{[1
]}

机构：

[1] Univ Innsbruck, Inst Ionenphys & Angew Phys, Technikerstr 25-3, A-6020 Innsbruck, Austria

[2] Heinrich Heine Univ Dusseldorf, Inst Expt Phys, Univ Str 1, D-40225 Dusseldorf, Germany

来源：

EUROPEAN PHYSICAL JOURNAL D | 2017年 / 71卷 / 05期

基金：

奥地利科学基金会;

关键词：

MOLECULAR-IONS; H-2(+); HE;

D O I：

10.1140/epjd/e2017-70740-7

中图分类号：

O43 [光学];

学科分类号：

070207 ; 0803 ;

摘要：

In the present work we discuss the dynamical processes guiding the relaxation of the internal rotational energy of three diatomic ions, the para-H-2(+), the ortho-D-2(+) and the HD+ in collision with He atoms. The state-changing cross sections and rates for these Molecular Hydrogen Ions (MHIs) are obtained from Close Coupling quantum dynamics calculations and the decay times into their respective ground states are computed by further solving the relevant time-evolution equations. The comparison of the results from the three molecules allows us to obtain a detailed understanding, and a deep insight, on the relative efficiencies of the relaxation processes considered.

引用

页数：11

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