Axion electron-electron interaction in the RaOH molecule to search for Dark matter

TL;DR

This paper investigates the potential of the RaOH molecule for detecting axion-mediated electron-electron interactions as a means to search for dark matter, employing advanced relativistic quantum chemistry methods.

Contribution

It introduces a computational approach combining relativistic effective core potentials and spinor restoration to evaluate axion interactions in RaOH.

Findings

The study assesses the suitability of RaOH for axion detection experiments.

It develops a methodology to account for molecular rotations and vibrations in such calculations.

The approach enables detailed analysis of axion-electron interactions in complex molecules.

Abstract

Axions are promising candidates for the role of Dark matter particles. In this paper, the question of the suitability of the RaOH molecule for the experimental detection of electron-electron interactions through the exchange of axions is studied. To take into account an impact of the rotations and vibrations a computation must be performed for a large number of molecular configurations. In this work we study this problem using a combination of the Generalized relativistic effective core potential and One-center restoration technique of the correct four-component spinors.