One-loop analysis of the four-Fermi contribution to the atomic EDM within RPVMSSM

TL;DR

This paper calculates the one-loop R-parity violating MSSM contribution to the $^{199}$Hg atomic EDM, revealing new coupling effects and constraining them with recent experimental limits.

Contribution

It provides the first one-loop analysis of RPV contributions to atomic EDMs, highlighting different coupling effects from tree-level studies.

Findings

RPV contributions to $^{199}$Hg EDM are constrained by recent experimental limits.

New couplings in RPV MSSM affect atomic EDM at one-loop level.

Constraints on RPV couplings improve understanding of CP violation in supersymmetry.

Abstract

The contribution in the R-parity violating (RPV) Minimal Supersymmetric Standard Model (MSSM) to the electric dipole moment (EDM) of $^{199}$Hg at the one-loop level is evaluated. At the one-loop level, the $^{199}$Hg EDM receives RPV contribution whose couplings are of a different type from the tree level analysis. This contribution is shown to be constrained by using the limit to the CP-odd electron-nucleon (e-N) interaction given by the recent result of $^{199}$Hg EDM experiment.