Oscillator strengths and branching ratios of transitions between low-lying levels in the barium II spectrum

The branching ratios of transitions between the 6s 2 S 1/2 , 7s 2 S 1/2 , 6p 2 P 1/2,3/2 , 5d 2 D 3/2,5/2 levels in the spectrum of Ba II have been measured. The accuracy of oscillator strengths have been improved in respect to literature values