ENHANCEMENT OF THE ELECTRIC-DIPOLE MOMENT OF THE ELECTRON IN THE BAF MOLECULE

We report results of ab initio calculation of the spin-rotational Hami ltonian parameters including P- and P,T-odd terms for the BaF molecule . The ground-state wave function of BaF molecule is found with the hel p of the relativistic effective core potential method followed by the restoration of molecular four-component spinors in the core region of barium in the framework of a nonvariational procedure. Core polarizati on effects are included with the help of the atomic many-body perturba tion theory for the Barium atom. For the hyperfine constants the accur acy of this method is about 5-10 %. [S1050-2947(97)50311-8].