# Improved bounds on heavy quark electric dipole moments

## TL;DR

This paper establishes significantly tighter indirect bounds on charm and bottom quark electric dipole moments using limits on their chromo-EDMs, impacting various new physics models.

## Contribution

It provides the most stringent indirect limits on heavy quark EDMs to date, refining constraints on beyond Standard Model theories.

## Key findings

- New bounds: |d_c|<1.5×10^{-21} e·cm, |d_b|<1.2×10^{-20} e·cm
- Limits improve previous bounds by about three orders of magnitude
- Implications for two-Higgs-doublet, leptoquark, and supersymmetry models

## Abstract

New bounds on the electric dipole moment (EDM) of charm and bottom quarks are derived using the stringent limits on their chromo-EDMs. The new limits, $|d_c|<1.5\times10^{-21}\:e\,\text{cm}$ and $|d_b|< 1.2\times 10^{-20}\:e\,\text{cm}$, improve the previous ones by about three orders of magnitude. These indirect bounds have implications for different models of new physics, including two-Higgs-doublet, leptoquarks, and supersymmetry models.