Assignment of excited-state bond lengths using branching-ratio measurements: The B${}^2{\Sigma }^{+}$ state of BaH molecules

K. Moore, I. C. Lane, R. L. McNally +1

Vibrational branching ratios in the B${}^2{\Sigma }^{+}$ -- X${}^2{\Sigma }^{+}$ and A${}^2\Pi$ -- X${}^2{\Sigma }^{+}$ optical-cycling transitions of BaH molecules are investigated using measurements and {\it ab initio}…