Abstract
The scaling of nuclear-spin-dependent parity-violating effects with increasing nuclear charge is discussed in two series of isoelectronic open-shell diatomic molecules. The parameter characterizing the strength of parity violation in diatomic molecules is calculated in the framework of the zeroth-order regular approximation and found to be in good agreement with the scaling law derived for atoms, in which represents a relativistic enhancement factor. The influence of electron correlation is studied on the molecular level, with spin-polarization effects being conveniently accounted for by a previously established approximate relation between the hyperfine coupling tensor and . For high-accuracy predictions of parity-violating effects in radium fluoride, the necessity for systematically improvable correlation calculations is emphasized.
- Received 14 August 2012
DOI:https://doi.org/10.1103/PhysRevA.86.062515
©2012 American Physical Society