Lifetime of the metastable $^{2}P_{1/2}$ state of F-like ${Ar}^{9+}$ isolated in a compact Penning trap - Samuel M. Brewer, Joan M. Dreiling, Nicholas D. Guise, Shannon F. Hoogerheide, Aung S. Naing, and Joseph N. Tan (American Physical Society (APS), 2018)
6329351
Keywords: U