ABSOLUTE VALUES OF ROVIBRONIC TRANSITION-PROBABILITIES FOR THE (IIIG-)-I-1-]B-1-SIGMA(-2 MOLECULE()(U) SYSTEM OF BANDS OF THE H)

The absolute values of probabilities of the radiative I(1)Pi(g)(-), v' , N --> B(1)Sigma(u)(+), v '', N transitions of the H-2 molecule are o btained for the first time for values of the vibrational quantum numbe rs v' = 0-3 and v '' = 0-9 and the rotational quantum numbers N = 2-6. The calculations are carried out using a nonadiabatic model developed in our previous papers, which takes into account the electronic-rotat ional interaction of the 3d(1)Pi(g)(-), v', N and 3d(1) Delta(g)(-), v ', N levels. Semiempirical data on expansion coefficients of the total wave functions of I(1)Pi(g)(-), v', N states in the Born-Oppenheimer basis of the 3d(1)Pi(g)(-) and 3d(1)Delta(g)(-), states are used. The dependence of the dipole moment of the 3d(1)Pi(g) --> 2p(1)Sigma(u)(+) electronic transition on the internuclear separation r is determined both from our semiempirical data and from results of a nonempirical ca lculation available in the literature. It is found that the discrepanc y between values of rovibronic transition probabilities, obtained on t he basis of nonempirical and semiempirical data on the dipole moment o f this transition, is, on the average, about 30%.