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Relativistic coupled-cluster investigation of parity (P) and time-reversal (T) symmetry violations in HgF | | Kaushik Talukdar
; Malaya K. Nayak
; Nayana Vaval
; Sourav Pal
; | | Date: |
12 Nov 2018 | | Abstract: | We employ the $Z$-vector method in the four-component relativistic
coupled-cluster framework to calculate the parity (${mathcal{P}}$) and
time-reversal (${mathcal{T}}$) symmetry violating scalar-pseudoscalar (S-PS)
nucleus-electron interaction constant ($W_ ext{s}$), the effective electric
field ($E_ ext{eff}$) experienced by the unpaired electron and the nuclear
magnetic quadrupole moment (NMQM)-electron interaction constant ($W_ ext{M}$)
in the open-shell ground electronic state of HgF. The molecular frame dipole
moment and the magnetic hyperfine structure (HFS) constant of the molecule are
also calculated at the same level of theory. The outcome of our study is that
HgF has a high value of $E_ ext{eff}$ (115.9 GV/cm), $W_ ext{s}$ (266.4 kHz)
and $W_ ext{M}$ ($3.59 imes 10^{33}$Hz/e.cm$^2$), which shows that it can be
a possible candidate for the search of new physics beyond the Standard model.
Our results are in good agreement with the available literature values.
Furthermore, we investigate the effect of the basis set and that of the virtual
energy functions on the computed properties. The role of the high-energy
virtual spinors are found to be significant in the calculation of the HFS
constant and the ${mathcal{P,T}}$-odd interaction coefficients. | | Source: | arXiv, 1811.4676 | | Services: | Forum | Review | PDF | Favorites | |
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