Semiclassical angular scattering in the F+H2 → HF+Hreaction:: Regge pole analysis using the Pade approximation

被引：39

作者：

Sokolovski, D ^{[1
]}

Castillo, JF

Tully, C

机构：

[1] Queens Univ Belfast, Dept Appl Math & Theoret Phys, Theoret & Computat Phys Res Div, Belfast BT7 1NN, Antrim, North Ireland

[2] Univ Complutense Madrid, Dept Quim Fis 1, E-28040 Madrid, Spain

来源：

CHEMICAL PHYSICS LETTERS | 1999年 / 313卷 / 1-2期

关键词：

D O I：

10.1016/S0009-2614(99)01016-7

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：

We apply the complex angular momentum analysis to study state-selective forward scattering in the F + H-2 reaction. The scattering matrix calculated by Castillo et al. is used. The S-matrix element is analytically continued into the complex plane of the total angular momentum with the help of the Fade approximation. Resonance (Regge) poles are identified and their residues evaluated. The semiclassical optical model is corrected to account for finite lifeangles of leading resonances. For chosen transitions, the forward scattering enhancement is shown to be a resonance effect due to the decay of a Regge state with angular life of about 32 degrees. (C) 1999 Elsevier Science B.V. All rights reserved.

引用

页码：225 / 234

页数：10

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