Relativistic coupled-cluster study of RaF as a candidate for parity and time reversal violating interaction
Abstract
We have employed both Z-vector method and the expectation value approach in the relativistic coupled-cluster framework to calculate the scalar-pseudoscalar (S-PS) P, T -odd interaction constant (W_s) and the effective electric field (Eeff) experienced by the unpaired electron in the ground electronic state of RaF. Further, the magnetic hyperfine structure constants of ^{223}Ra in RaF and ^{223}Ra+ are also calculated and compared with the experimental values wherever available to judge the extent of accuracy obtained in the employed methods. The outcome of our study reveals that the Z-vector method is superior than the expectation value approach in terms of accuracy obtained for the calculation of ground state property. The Z-vector calculation shows that RaF has a high E_eff (52.5 GV/cm) and W_s (141.2 kHz) which makes it a potential candidate for the eEDM experiment.
Keywords
Cite
@article{arxiv.1602.08200,
title = {Relativistic coupled-cluster study of RaF as a candidate for parity and time reversal violating interaction},
author = {Sudip Sasmal and Himadri Pathak and Malaya K. Nayak and Nayana Vaval and Sourav Pal},
journal= {arXiv preprint arXiv:1602.08200},
year = {2016}
}
Comments
8 pages, 3 figures