Updated constraints on $\mathcal{T}$,$\mathcal{P}$-violating axionlike-particle-mediated electron-electron and electron-nucleus interactions from HfF$^+$ experiment
Abstract
Recently, upper bounds on the static time-reversal () and spatial parity ()-violating electron electric dipole moment (EDM) and dimensionless constant characterizing the strength of the ,-violating scalar-pseudoscalar nucleus-electron interaction have been updated in the JILA experiment using the HfF cations [T.S. Roussy et al, arxiv:2212.11841 (2022)]. We considered other two sources of the ,,-violation in HfF -- axionlike-particle-mediated (ALP) scalar-pseudoscalar electron-electron and nucleus-electron interactions. To estimate the magnitude of effects, induced by such interactions in HfF we have developed and applied a method which implies direct use of the ab-initio relativistic coupled cluster theory to calculate molecular parameters that characterize the interactions. Using these parameters, we showed that an order of magnitude updated laboratory constraints on the ALP-mediated electron-electron and nucleus-electron interactions can be derived from the experimental data on ,-violating effects in HfF for a wide range of ALP masses.
Keywords
Cite
@article{arxiv.2304.07164,
title = {Updated constraints on $\mathcal{T}$,$\mathcal{P}$-violating axionlike-particle-mediated electron-electron and electron-nucleus interactions from HfF$^+$ experiment},
author = {Sergey D. Prosnyak and Daniel E. Maison and Leonid V. Skripnikov},
journal= {arXiv preprint arXiv:2304.07164},
year = {2023}
}