Spurious resonances in a version of the algebraic Resonating-Group Method

A. Csótó, B. Gyarmati, A. T. Kruppa

Research output: Contribution to journalArticle

3 Citations (Scopus)


It is shown that the conditions claimed to transform the algebraic version of the Resonating-Group Model, originally invented for scattering problems, into a complex eigenvalue problem corresponding to resonant states are necessary but not sufficient. This can be concluded from the fact that false resonances are produced along with true ones. They can be distinguished and discarded by introducing an arbitrary non-linear parameter. The true solutions are invariant against this parameter but the false ones can be swept out even into non-physical regions of the energy.

Original languageEnglish
Pages (from-to)149-154
Number of pages6
JournalFew-Body Systems
Issue number4
Publication statusPublished - Dec 1 1992

ASJC Scopus subject areas

  • Atomic and Molecular Physics, and Optics

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