ABSOLUTE CROSS-SECTIONS FOR DISSOCIATIVE RECOMBINATION OF HD+ - COMPARISON OF EXPERIMENT AND THEORY

被引：55

作者：

STROMHOLM, C

SCHNEIDER, IF

SUNDSTROM, G

CARATA, L

DANARED, H

DATZ, S

DULIEU, O

KALLBERG, A

AFUGGLAS, M

URBAIN, X

ZENGIN, V

SUZORWEINER, A

LARSSON, M

机构：

[1] INST PHYS & TECHNOL RADIAT DEVICES, DEPT LASER, BUCHAREST, ROMANIA

[2] UNIV STOCKHOLM, MANNE SIEGBAHN LAB, S-10405 STOCKHOLM, SWEDEN

[3] OAK RIDGE NATL LAB, DIV PHYS, OAK RIDGE, TN 37831 USA

[4] UNIV PARIS 11, AIME COTTON LAB, ORSAY, FRANCE

[5] UNIV CATHOLIQUE LOUVAIN, COLLIS LAB, B-1348 LOUVAIN, BELGIUM

[6] UNIV PARIS 11, PHOTOPHYS MOLEC LAB, F-91405 ORSAY, FRANCE

[7] UNIV PARIS 06, CHIM PHYS LAB, PARIS, FRANCE

来源：

PHYSICAL REVIEW A | 1995年 / 52卷 / 06期

关键词：

D O I：

10.1103/PhysRevA.52.R4320

中图分类号：

O43 [光学];

学科分类号：

070207 ; 0803 ;

摘要：

Absolute cross sections for dissociative recombination of HD+ were measured in the ion storage CRYRING for incident electron energies in the range 0.01-20 eV. The ions were stored for about 25 s before data taking, which is several orders of magnitude longer than their vibrational lifetimes towards spontaneous emission of infrared radiation. A broad resonance in the cross section at 5-12 eV is due to recombination into a manifold of doubly excited states. Multichannel quantum-defect theory was used to calculate the absolute cross section of this resonance. The calculations required inclusion of different mechanisms, such as dissociative autoionization, and many molecular states in order to reproduce the resonance region. Very good agreement of experiment and theory is found, and the results strongly reinforce that vibrationally cold ions were used in the experiment.

引用

页码：R4320 / R4323

页数：4

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