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P, T-violating axion-mediated interactions in the RaOH molecule

Anna Zakharova*

  • *Contact author: zakharova.annet@gmail.com; anna.zakharova@spbu.ru
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Phys. Rev. D 113, 055011 – Published 4 March, 2026

DOI: https://doi.org/10.1103/c3fg-p7w4

Abstract

If axions simultaneously have the scalar couplings to the nucleons and pseudoscalar couplings to the electrons, it may mediate a P, T-violating interaction between the electronic shell and nuclei in the molecules. The polyatomic molecule RaOH, which is considered a promising platform for the P, T-violation searches, is studied for its sensitivity to such interactions. Because of the long-range nature (on molecular scales) of the axion-mediated interaction, it is important whether the molecular parameter is sensitive to the vibration of the molecule. Our results imply that the impact of the vibrations on the axion-mediated electron-nucleon interaction in the molecule is similar to the impact on the short-range electron-nucleon scalar-pseudoscalar interaction studied earlier.

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Phys. Rev. D 113, 055011– Published 4 March, 2026
  • Received 1 September 2025
  • Accepted 6 February 2026
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Published by the American Physical Society under the terms of the Creative Commons Attribution 4.0 International license. Further distribution of this work must maintain attribution to the author(s) and the published article’s title, journal citation, and DOI. Funded by SCOAP3.

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