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Solving a coupled-channels scattering problem by adding confining potentials

par Suzuki, Yasuyuki ;Baye, Daniel Jean ;Kievsky, A.
Référence Nuclear physics. A, 838, page (20-37)
Publication Publié, 2010

Article révisé par les pairs

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Résumé :

A new method to obtain both the wave function and . S matrix for coupled-channels scattering problems is presented. The method is characterized by the introduction of a real confining potential acting in the external region, which enables one to solve the problem using virtually only the bound-state solutions. The asymptotic behavior of the continuum state is guaranteed with a single-channel Green's function. The accuracy and simplicity of the method are demonstrated on the two examples of an exactly solvable two-channel potential and the nucleon-nucleon scattering. © 2010 Elsevier B.V.