Time reversal violating Magnetic Quadrupole Moment in heavy deformed nuclei

Abstract

The existence of permanent electric dipole moments (EDMs) and magnetic quadrupole moments (MQMs) violate both time reversal invariance ($T$) and parity ($P$). Following the $CPT$ theorem they also violate combined $CP$ symmetry. Nuclear EDM are completely screened in atoms and molecules while interaction between electrons and MQM creates atomic and molecular EDM which can be measured and used to test CP-violation theories. Nuclear MQM are produced by the nucleon-nucleon $T,P$-odd interaction and by nucleon EDM. In this work we study the effect of enhancement of the nuclear MQM due to the nuclear deformation. Using the Nilsson model we calculate the nuclear MQMs for deformed nuclei of experimental interest and the resultant MQM energy shift in diatomic molecules of experimental interest ${}^{173}$YbF , ${}^{177,179}$HfF${}^{+}$, ${}^{181}$TaN, ${}^{181}$TaO${}^{+}$, ${}^{229}$ThO and ${}^{229}$ThF${}^{+}$.

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• Polyatomic Molecules as Quantum Sensors for Fundamental Physics
• Enhanced $\mathcal{P},\mathcal{T}$-violating nuclear magnetic quadrupole moment effects in laser-coolable molecules
• Theoretical study of ${}^{173}$YbOH to search for the nuclear magnetic quadrupole moment
• Search for CP-violating nuclear magnetic quadrupole moment using the LuOH${}^{+}$ cation
• Enhanced Magnetic Quadrupole Moments in Nuclei with Octupole Deformation and their CP-violating effects in molecules
• Effect of the Pauli exclusion principle in the electric dipole moment of ${}^9$Be with $|\Delta S|=1$ interactions
• Relativistic Exact Two-Component Coupled-Cluster Study of Molecular Sensitivity Factors for Nuclear Schiff Moments
• Enhanced Schiff and magnetic quadrupole moments in deformed nuclei and their connection to the search for axion dark matter
• Atomic and molecular transitions induced by axions via oscillating nuclear moments
• Isotopologue-selective laser cooling of molecules
• Parity and time-reversal symmetry violation in diatomic molecules: LaO, LaS and LuO
• Nuclear Schiff Moments and CP Violation
• Measuring the nuclear magnetic quadrupole moment of optically trapped ytterbium atoms in the metastable state
• Spectroscopic and Electric Properties of the TaO${}^{+}$ Molecule Ion for the Search of New Physics: A Platform for Identification and State Control
• Nuclear Electric Quadrupole Moment-Induced Parity Doubling in Molecules for Symmetry-Violation Searches
• A survey of nuclear quadrupole deformation in order to estimate the nuclear MQM and its relative contribution to the atomic EDM