The A 1Σu+ state of K2 up to the dissociation limit

被引：25

作者：

Falke, St. ^{[1
]}

Sherstov, I. ^{[1
]}

Tiemann, E. ^{[1
]}

Lisdat, Ch. ^{[1
]}

机构：

[1] Leibniz Univ Hannover, Inst Quantenopt, D-30167 Hannover, Germany

来源：

JOURNAL OF CHEMICAL PHYSICS | 2006年 / 125卷 / 22期

关键词：

D O I：

10.1063/1.2375120

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 report an experimental study of the K-2 A (1)Sigma(+)(u) state. Long-range levels up to the dissociation limit were observed in a two laser spectroscopic experiment using a highly collimated molecular beam. We derive an analytical potential energy curve for the complete A state including long-range dispersion terms. From these, we obtain radiative atomic lifetimes of 26.74(3) ns for the 4p(1/2) state and 26.39(3) ns for the 4p(3/2) state of K-39. The dissociation energy of the X (1)Sigma(+)(g) ground state with respect to v=0, J=0 is found to be D-0=4404.808(4) cm(-1). (c) 2006 American Institute of Physics.

引用

页数：9

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