Transition probabilities of forbidden lines within the electronic configurations 6p 2 and 6p 7p of Pb I

The least squares fit of radial parameters involving radial functions of the 6p ²- and 6p 7p-configurations of Pb I has been carried out. The wave functions of the 9 lowest even levels of Pb I have been found in the basis of LSJ-states belonging to two configurations. On the base of the wave functions the transition probabilities for magnetic dipole (M1) and electric quadrupole (E2) radiation have been calculated. Comparison of experimental data and theoretical results is discussed.