Dissociative electron attachment to carbon dioxide via the 2Πu shape resonance

被引：30

作者：

Moradmand, A. ^{[1
]}

Slaughter, D. S. ^{[2
]}

Haxton, D. J. ^{[2
]}

Rescigno, T. N. ^{[2
]}

McCurdy, C. W. ^{[2
,3
,4
]}

Weber, Th ^{[2
]}

Matsika, S. ^{[5
]}

Landers, A. L. ^{[1
]}

Belkacem, A. ^{[2
]}

Fogle, M. ^{[1
]}

机构：

[1] Auburn Univ, Dept Phys, Auburn, AL 36849 USA

[2] Univ Calif Berkeley, Lawrence Berkeley Natl Lab, Berkeley, CA 94720 USA

[3] Univ Calif Davis, Dept Chem, Davis, CA 95616 USA

[4] Univ Calif Davis, Dept Appl Sci, Davis, CA 95616 USA

[5] Temple Univ, Dept Chem, Philadelphia, PA 19122 USA

来源：

PHYSICAL REVIEW A | 2013年 / 88卷 / 03期

关键词：

VIBRATIONAL-EXCITATION; CO2; SCATTERING;

D O I：

10.1103/PhysRevA.88.032703

中图分类号：

O43 [光学];

学科分类号：

070207 ; 0803 ;

摘要：

Momentum imaging measurements from two experiments are presented and interpreted with the aid of ab initio theoretical calculations to describe the dissociative electron attachment (DEA) dynamics of CO2. The dynamics of the transient negative ions of CO2- involve several conical intersections taking part in mechanisms that have only recently been understood. We address the problem of how the 4-eV (2)Pi(u) shape resonance in CO2 proceeds to dissociate to CO((1)Sigma(+)) + O- (P-2) by DEA.

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页数：7

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