Towards the search of T,P-odd interactions in lead monofluoride, PbF
Abstract
The relativistic coupled-clusters method combined with the generalized relativistic effective core potential approach and nonvariational one-center restoration technique is applied to evaluation of parameters of spin-rotational effective Hamiltonian in lead monofluoride to study the effects of violation of time-reversal invariance (T) and space parity (P) in PbF. The obtained hyperfine structure constants, A||=9942 MHz and A=-7174 MHz are stable with respect to the improvement of the correlation treatment and they are in a very good agreement with the experimental data, A||=10147 MHz and A=-7264 MHz [PRA 84, 022508 (2011)]. This is essential to the important task of verifying the value of effective electric field =40 GV/cm, the parameter of P-odd interaction WP=-1213 Hz and the parameter of T,P-odd pseudoscalar-scalar electron-nucleus interaction WT,P=91 kHz, which are of primary interest in the paper.
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