# Theoretical analysis of effective electric fields in mercury monohalides

## TL;DR

This paper provides a detailed theoretical analysis of the effective electric fields in mercury monohalides, crucial for electron EDM searches, highlighting the atomic orbital contributions and correlation effects.

## Contribution

It offers a comprehensive theoretical elucidation of the effective electric fields in mercury monohalides, including correlation effects and atomic orbital contributions, advancing understanding for EDM experiments.

## Key findings

- Identification of key atomic orbital mixings affecting the electric field
- Quantification of correlation effects on the effective electric field
- Analysis of Dirac-Fock level contributions to the electric field

## Abstract

Mercury monohalides are promising candidates for electron electric dipole moment searches. This is due to their extremely large values of effective electric fields, besides other attractive experimental features. We have elucidated the theoretical reasons of our previous work. We have also presented a detailed analysis of our calculations, by including the most important of the correlation effects' contributions. We have also analyzed the major contributions to the effective electric field, at the Dirac- Fock level, and identified those atomic orbitals' mixings that contribute significantly to it.