New spectroscopic data, spin-orbit functions, and global analysis of data on the AΣu+1 and bΠu3 states of Na2
作者： P. Qi , J. Bai , E. Ahmed , A. M. Lyyra , S. Kotochigova
DOI: 10.1063/1.2747595
关键词: Spin (physics) 、 Function (mathematics) 、 Atomic physics 、 Excited state 、 State (functional analysis) 、 Excitation 、 Chemistry 、 Spectroscopy 、 Data analysis 、 Ab initio
摘要: The lowest electronically excited states of Na2 are interest as intermediaries in the excitation higher and development methods for producing cold molecules. We have compiled previously obtained spectroscopic data on AΣu+1 bΠu3 from about 20 sources, both published unpublished, together with new sub-Doppler linewidth measurements 15 000 A←X transitions using polarization spectroscopy. also present ab initio results diagonal off-diagonal spin-orbit functions. discrete variable representation is used conjunction Hund’s case a potentials plus effects to model extending v=0 very close 3S2+3P1∕22 limit. Empirical estimates functions agree well accessible values R. potential function A state includes an exchange S+P atoms, fitted coefficient somewhat larger than predicted value. Observed calculat...
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