A finite-element approach to transition wavelengths in antiprotonic helium
Atomic Physics, Department of Physics, Stockholm University, Frescativägen 24, S-10405 Stockholm, Sweden
Accepted: 24 January 1997
The energy level spectrum of antiprotonic helium was calculated with a newly developed three-dimensional finite-element Schrödinger equation solver in the total-angular-momentum representation. A small partition of the full coupled equation problem was found to give converged, accurate results. The calculated wavelengths agree with recent experimental results within 50 ppm. Relativistic corrections are estimated.
PACS: 36.10.-k – Exotic atoms and molecules (containing mesons, muons, and other unusual particles) / 31.15.Ar – Ab initio calculations / 02.70.Dh – Finite-element and Galerkin methods
© EDP Sciences, 1997