Candidate Molecules for Next-Generation Searches of Hadronic Charge-Parity Violation

Abstract

We systematically study a set of strongly polar heteronuclear diatomic molecules composed of laser-coolable atoms for their suitability as sensitive probes of new charge-parity violation in the hadron sector of matter. Using relativistic general-excitation-rank configuration interaction theory we single out the molecule francium-silver (FrAg) as the most promising system in this set and calculate its nuclear Schiff-moment interaction constant to $W_{SM}^{\mathrm{FrAg}}(\mathrm{Fr})=30168\pm 2504a.u.$ for the target nucleus Fr. Our work includes the development of system-tailored atomic Gaussian basis sets for the target atom in each respective molecule.

16 pages, 10 tables