Candidate molecules for next-generation searches of hadronic charge-parity violation
Aurélien Marc, Mickaël Hubert, Timo Fleig
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 ${W}_{\text{SM}}^{\mathrm{FrAg}}(\mathrm{Fr})=30168\ifmmode\pm\else\textpm\fi{}2504\phantom{\rule{4pt}{0ex}}\text{a.u.}$ 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.