Hyperfine-resolved optical spectroscopy of ultracold $^{87}$Rb$^{133}$Cs molecules: the $\mathrm{b}^3\Pi_0$ metastable state
Arpita Das, Albert Li Tao, Luke M. Fernley, Fritz von Gierke, Philip D. Gregory, Simon L. Cornish, Jeremy M. Hutson, Romain Vexiau, Olivier Dulieu
https://arxiv.org/abs/2510.24660