"Flavored" Electric Dipole Moments in Supersymmetric Theories

TL;DR

This paper highlights that beyond-leading-order effects in supersymmetric theories significantly impact predictions of electric dipole moments, surpassing leading-order effects in many parameter regions, thus crucial for probing new physics.

Contribution

It demonstrates that beyond-leading-order effects dominate over leading-order effects in calculating hadronic EDMs within MSSM frameworks, emphasizing their importance in new physics searches.

Findings

BLO effects dominate LO effects in large parameter regions

Inclusion of BLO effects is essential for accurate EDM predictions

Supersymmetric flavor-changing effects can produce observable EDMs

Abstract

The Standard Model (SM) predictions for the hadronic electric dipole moments (EDMs) are well far from the present experimental resolutions, thus, the EDMs represent very clean probes of New Physics (NP) effects. Especially, within an MSSM framework with flavor-changing (but not necessarily CP violating) soft terms, large and potentially visible effects to the EDMs are typically expected. In this Letter we point out that, beyond-leading-order (BLO) effects, so far neglected in the literature, dominate over the leading-order (LO) effects in large regions of the parameter space, hence, their inclusion in the evaluation of the hadronic EDMs is unavoidable.