Exploration of resonances by analytic continuation in the coupling constant

1997/03/18 by N. Tanaka, Norio Tanaka, Y. Suzuki +1 · 3 citations
Physics and Astronomy · #Advanced Chemical Physics Studies #Atomic and Molecular Physics #Nuclear physics research studies #nucl-th

paper · pdf · doi:10.1103/physrevc.56.562

published as Phys.Rev.C56:562-565,1997 · 9 pages, revtex with epsf figures

arxiv created 1997/03/18 · openalex publication_date 1997/07/01 · arxiv updated 2009/12/01 · openalex created_date 2025/10/10 · openalex updated_date 2026/07/28

Abstract

The energy and the width of resonance states are determined by analytic continuation of bound-state energies as a function of the coupling constant (potential strength). The advantage of the method is that the existing techniques for calculation of bound states can be applied, without any modifications, to determine the position of resonances. Various numerical examples show the applicability of the method for three-body systems, including the excited states of the ⁶He and ⁶Li.

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