$\mathcal{P}$, $\mathcal{T}$-violating axion-mediated interactions in RaOH molecule

TL;DR

This paper investigates the sensitivity of the RaOH molecule to axion-mediated $ ext{P}$, $ ext{T}$-violating interactions, considering the effects of molecular vibrations on long-range axion interactions.

Contribution

It provides an analysis of how molecular vibrations influence the detection of axion-mediated $ ext{P}$, $ ext{T}$-violating interactions in RaOH, a promising candidate for such searches.

Findings

Vibrations have a similar impact on axion-mediated and short-range scalar-pseudoscalar interactions.

RaOH's structure makes it a promising platform for $ ext{P}$, $ ext{T}$ violation searches.

Long-range axion interactions are sensitive to molecular vibrational effects.

Abstract

If axion simultaneously has the scalar couplings to the nucleons and pseudo-scalar couplings to the electrons, it may mediate a $\mathcal{P}$, $\mathcal{T}$-violating interaction between the electronic shell and nuclei in the molecules. The polyatomic molecule RaOH, which is considered as a promising platform for the $\mathcal{P}$, $\mathcal{T}$ violation searches, is studied for its sensitivity to such interactions. Due to the long-range nature (on molecular scales) of the axion-mediated interaction, it is important whether the enhancement parameter would be 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.