https://doi.org/10.1140/epjd/e20020049
Numerical calculation of energies of some excited states in a helium atom
CCAST (World Laboratory), P.O. Box 8730, Beijing 100080, P.R. China
and
Institute of High Energy Physics, Beijing 100039, P.R. China
Corresponding author: a duanb@mail.ihep.ac.cn
Received:
27
May
2001
Revised:
20
November
2001
Published online: 15 April 2002
The energies of some excited states with the total angular momentum L=0, 1 and 2, the total spin of two electrons S=0 and 1, and the even and odd parities are precisely calculated directly from the Schrödinger equation where the mass of the helium nucleus is finite. Moreover, we find that the solutions to the equation for the excited states have some more nodes, which can be used to distinguish the states with the same spectral term.
PACS: 03.65.Ge – Solutions of wave equations: bound states / 32.30.-r – Atomic spectra
© EDP Sciences, Società Italiana di Fisica, Springer-Verlag, 2002
