title: Variational calculation for the doubly excited state (2p2)3Pe of Be III.
abstract: Nonrelativistic energy of the (2p(2))(3)P(e) state of Be(2+) has been calculated using Ritz-variational method. The trial wave function is of Hylleraas type. The upper-bound energy E=-3.382 712 420 77 a.u. calculated by us is the lowest yet obtained.
authors.affiliation: Department of Spectroscopy, Indian Association for the Cultivation of Science, Jadavpur, Kolkata 700032, India.
authors.forename: S
authors.initials: S
authors.lastname: Bhattacharyya
authors.forename: A N
authors.initials: AN
authors.lastname: Sil
authors.forename: T K
authors.initials: TK
authors.lastname: Mukherjee
authors.forename: P K
authors.initials: PK
authors.lastname: Mukherjee