title: Stark and Zeeman effect in the [18.6]3.5 - X(1)4.5 transition of uranium monofluoride, UF.
abstract: High resolution spectra of the 0-0 band of the [18.6]3.5 - X(1)4.5 transition of uranium monofluoride, UF, obtained using a laser ablation spectrometer, showed a perturbation in the upper state. Examination of the Stark and Zeeman effects yielded permanent electric dipole moments of 2.01 and 1.88 D and magnetic g-factors of 3.28 and 3.26 for the ground and excited states, respectively. Both the dipole moment and g-factor of the ground state are in good agreement with ab initio calculations [I. O. Antonov and M. C. Heaven, J. Phys. Chem. A 117, 9684 (2013)]. The Zeeman effect results confirm that the ground state arises primarily from the U(+)(5f (3)7s(2 4)I(4.5))F(-) configuration and suggest several possible configurations for the upper state.
authors.affiliation: Centre for Laser, Atomic, and Molecular Sciences, Physics Department, University of New Brunswick, 8 Bailey Drive, Fredericton, New Brunswick E3B 5A3, Canada.
authors.forename: C
authors.initials: C
authors.lastname: Linton
authors.affiliation: Centre for Laser, Atomic, and Molecular Sciences, Chemistry Department, University of New Brunswick, 30 Dineen Drive, Fredericton, New Brunswick E3B 5A3, Canada.
authors.forename: A G
authors.initials: AG
authors.lastname: Adam
authors.affiliation: Department of Chemistry and Biochemistry, Arizona State University, Tempe, Arizona 85287-1604, USA.
authors.forename: T C
authors.initials: TC
authors.lastname: Steimle