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arXiv · 2006.03848

Search for CP-violating nuclear magnetic quadrupole moment using the LuOH$^+$ cation

D. E. Maison·L. V. Skripnikov·V. V. Flambaum·M. Grau
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Abstract

The CP-violating interaction of the nuclear magnetic quadrupole moment (MQM) of the $^{175}$Lu nucleus with electrons in the molecular cation LuOH$^+$ is studied. The resulting effect is expressed in terms of CP-odd parameters, such as quantum chromodynamics angle $\bar{\theta}$, quark electric dipole moment (EDM) and chromo-EDM. For this we have performed a calculation of the nuclear MQM as well as the molecular constant that characterises the interaction of this MQM of $^{175}$Lu with electrons. Additionally, we predict the hyperfine structure constants for the ground electronic state of LuOH$^+$. We conclude that LuOH$^+$ is a promising system to measure the nuclear MQM.

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D. E. Maison, L. V. Skripnikov, V. V. Flambaum, M. Grau. 2020-06-06. Search for CP-violating nuclear magnetic quadrupole moment using the LuOH$^+$ cation. https://doi.org/10.1063/5.0028983

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