par Descouvemont, Pierre ;Vincke, Marc
Référence Physical review. A, Atomic, Molecular, and Optical Physics, 42, 7, page (3835-3843)
Publication Publié, 1990
Article révisé par les pairs
Résumé : The R-matrix formalism is applied to the study of resonance properties. We present an iterative method that provides the energy and width of a resonance without the usual Breit-Wigner parametrization. The validity of the method is checked on a microscopic study of C13+13C scattering at low energies, and on the hydrogen atom in a strong magnetic field. For this latter system, the method is also applied to the study of two-channel resonances. © 1990 The American Physical Society.