Radiative lifetime of the A 2Π1/2 state in RaF with relevance to laser cooling

M. Athanasakis-Kaklamanakis, S. G. Wilkins, P. Lassègues +38

The radiative lifetime of the $A$ ${}^2{\Pi }_{1/2}$ (v=0) state in radium monofluoride (RaF) is measured to be 35(1) ns. The lifetime of this state and the related decay rate $Γ= 2.86(8…