title: [Spectroscopic study of the 1pig Rydberg states of Na2].
abstract: Six highly excited 1pig states of the Na2 molecule have been investigated by optical-optical double resonance (OODR) flourescence excitation spectroscopy. Absolute vibrational numberings are determined and molecular constants and RKR potential curves are obtained. The lowest 10 1pig states have been relabeled according to the hydrogenic nllambda characters of the Rydberg orbital and classified into core-penetrating and core-nonpenetrating Rydberg states.
authors.affiliation: Department of Physics, Center of Atomic and Molecular Sciences, Tsinghua University, 100084 Beijing.
authors.forename: J
authors.initials: J
authors.lastname: Xiang
authors.forename: X
authors.initials: X
authors.lastname: Dai
authors.forename: S
authors.initials: S
authors.lastname: Peng
authors.forename: H
authors.initials: H
authors.lastname: Chen
authors.forename: Y
authors.initials: Y
authors.lastname: Liu
authors.forename: J
authors.initials: J
authors.lastname: Li
authors.forename: D
authors.initials: D
authors.lastname: Chen
authors.forename: L
authors.initials: L
authors.lastname: Li