Energies of the ground states of He, Li+, and O6+

Chandrasekhar, S. ; Herzberg , G. (1955) Energies of the ground states of He, Li+, and O6+ Physical Review, 98 (4). pp. 1050-1054. ISSN 0031-899X

Full text not available from this repository.

Official URL: http://prola.aps.org/abstract/PR/v98/i4/p1050_1

Related URL: http://dx.doi.org/10.1103/PhysRev.98.1050


A complete 14-parameter calculation for the ground state of He and similar 10-parameter calculations for the ground states of Li+ and O6+ have been carried out. In addition, using the four most important of eleven terms, which were tried individually as fifteenth parameters, an 18-parameter calculation for He has been carried out but without minimizing against the scale parameter k. Similar 12-parameter calculations were carried out for Li+ and O6+ using the two most important terms beyond the tenth in the He calculation. As a result, the 18-parameter nonrelativistic ionization potential of He is found to be 198311.4 cm-1. The series of 6, 10, 14, 18 parameter values appears to converge to 198312.3 cm-1 with an error of less than 2 cm-1. Adding the relativistic corrections yields 198310.4 cm-1 which agrees to 0.1 cm-1 with the latest experimental value. Considering the uncertainties of the theoretical and experimental values, the magnitude of the Lamb shift of the ground state of He (compared to He+) must be less than 3 cm-1 which does not contradict present theoretical estimates. Similar agreements but within wider limits of error are found for the 12-parameter energy values of the ground states of Li+ and O6+.

Item Type:Article
Source:Copyright of this article belongs to The American Physical Society.
ID Code:70314
Deposited On:16 Nov 2011 04:09
Last Modified:16 Nov 2011 04:09

Repository Staff Only: item control page