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Solving the resonating-group equation on a Lagrange mesh

par Hesse, Michel ;Roland, Jérémie ;Baye, Daniel Jean
Référence Nuclear Physics A, 709, 1, page (184-200)
Publication Publié, 2002

Article révisé par les pairs

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Résumé :

The resonating-group method allows treating reactions in a fully microscopic way. The non-local resonating-group equation can be accurately solved on a Lagrange mesh involving few mesh points. This mesh technique is combined with either the R -matrix method or the Hulthén-Kohn method. The forbidden states can be eliminated by a special treatment. The accuracy of the technique of solution is illustrated on a solvable non-local potential. Phase shifts for the α + n and α + p scatterings are calculated with both variants of the resonating-group method on a Lagrange mesh and a comparison is performed between them and the equivalent generator-coordinate method. © 2002 Elsevier Science B.V. All rights reserved.