THE PARITY NONCONSERVATION E1 MATRIX OF BARIUM - A SEMIEMPIRICAL CALCULATION

A number of works have reported on the calculation of the parity non-conservation E1 matrix for Cs and Tl atoms. However little has been done on other more complex atoms. In this paper we give a MQDT wavefunction for an alkaline-earth atom at the origin, and upon this base a semi-empirical calculation of Im E1pnc of atomic barium. The results show that the Im E1pnc of the 0 --> 32480 cm-1 transition is 8.9 X 10(-11) ea(o), which implies that the barium atom might be a possible candidate for PNC investigation in atomic spectroscopy.