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Effective three- and four-body forces in the five nucleon system

Publication: Canadian Journal of Physics
October 1978

Abstract

Effective three-body forces utilized in the A = 3 and 4 systems are extended to the mass five system. The approach predicts an overestimate of the binding energies for both 5Li and 5He. An effective four-body interaction, derived from A = 4 ground state properties, is used in conjunction with this three-body force, and predicts results in agreement with experiment. The position of the first excited state is calculated to lie at 7.2 MeV excitation for both 5Li and 5He.

Résumé

Les forces effectives entre trois corps utilisées dans le cas des systèmes A = 3 et A = 4 sont étendues au cas du système de masse 5. Cette approche conduit à une surestimation de l'énergie de liaison pour les deux noyaux 5Li et 5He. L'addition à la force entre trois corps d'une interaction entre quatre corps obtenue à partir des propriétés du niveau fondamental du système A = 4 permet de prédire des résultats en accord avec l'expérience. Le calcul donne 7.2 MeV pour la position du premier niveau excité des deux noyaux, 5Li et 5He.[Traduit par le journal]

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cover image Canadian Journal of Physics
Canadian Journal of Physics
Volume 56Number 10October 1978
Pages: 1382 - 1385

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Version of record online: 11 February 2011

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