Calculation of nuclear-spin-dependent parity nonconservation in s-d   transitions of Ba$^+$, Yb$^+$ and Ra$^+$ ions
  We use correlation potential and many-body perturbation theory techniques to calculate spin-independent and nuclear spin-dependent parts of the parity nonconserving amplitudes of the transitions between the $6s_{1/2}$ ground state and the $5d_{3/2}$ excited state of Ba$^+$ and Yb$^+$ and between the $7s_{1/2}$ ground state and the $6d_{3/2}$ excited state of Ra$^+$. The results are presented in a form convenient for extracting of the constants of nuclear-spin-dependent interaction (such as, e.g., anapole moment) from the measurements. 
V. A. Dzuba and V. V. Flambaum
physics.atom-ph