Calculation of Spectroscopic Constants and Radiative Parameters for A~(1)(SIGMA)_(u)~(+)-X~(1)(SIGMA)_(g)~(+) and B~(1)(PI)_(u)-X~(1)(SIGMA)_(g)~(+) Electronic Transitions of Sodium Dimer

摘要

Vibrational, rotational, and centrifugal spectroscopic constants and radiative parameters, i.e., the Einstein coefficients, oscillator strengths, and wave numbers for vibrational transitions in electronic systems of bands A~(1)(SIGMA)_(u)~(+)-X~(1)(SIGMA)_(g)~(+) (0 <= v' <= 25; 0 <= v" <= 44), B~(1)(PI)_(u)-X~(1)(SIGMA)_(g)~(+) (0 <= v' <= 29; 0 <= v" <= 47), and the radiative lifetimes for the vibrational levels of excited states of the sodium dimer, are calculated. The calculations are carried out based on semiempirical potential curves constructed in this study. The calculated spectroscopic constants and radiative lifetimes are compared to the experimental values.