Eur. Phys. J. D 27, 27-32 (2003)
https://doi.org/10.1140/epjd/e2003-00231-5

Fine structure and hyperfine structure of some excited states of helium

Department of Physics, Beijing Institute of technology, Beijing 100081, P.R. China

Corresponding authors: ^a goubing@sina.com - ^b fwang@bit.edu.cn - ^c xlwu@sina.com

Received: 17 January 2003
Revised: 23 April 2003
Published online: 29 July 2003

Abstract

The fine structure and the hyperfine structure for some singly-excited and doubly-excited states of helium atom are calculated using Rayleigh-Ritz variational method with multi-configuration-interaction wave functions. The calculated results of the fine structure for the Rydberg series are in good agreement with other theoretical and experimental data. The hyperfine parameters and the hyperfine coupling constants of ³He are also obtained for this system.