Calculation of spectroscopic constants and radiative parameters for A1I£u+-X1I£g+ and B1Πu-X1I£g+ electronic transitions of sodium dimer

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 I-1 pound (u) (+) -X I-1 pound (g) (+) (0 a parts per thousand currency sign v' a parts per thousand currency sign 25; 0 a parts per thousand currency sign vaEuro(3) a parts per thousand currency sign 44), B I-1 (u) -X I-1 pound (g) (+) (0 a parts per thousand currency sign v' a parts per thousand currency sign 29; 0 a parts per thousand currency sign vaEuro(3) a parts per thousand currency sign 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.