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2002-02-15 - Article/Dans un journal avec peer-review - Anglais - 8 page(s)

Lacombe M., Loiseau B., Vinh Mau R., Demetriou P., de Melo J. P. B. C., Semay Claude , "Testing the quark cluster model in nucleon-nucleon scattering" in Physical Review. C : Nuclear Physics, 65, 034004 (8 p.)

  • Edition : American Physical Society, College Park (MD)
  • Codes CREF : Physique des particules élémentaires (DI1221), Physique théorique et mathématique (DI1210)
  • Unités de recherche UMONS : Physique nucléaire et subnucléaire (S824)
  • Instituts UMONS : Institut de Recherche sur les Systèmes Complexes (Complexys)
Texte intégral :

Abstract(s) :

(Anglais) The description of the short-range part of the nucleon-nucleon forces in terms of quark degrees of freedom is tested against experimental observables. We consider, for this purpose, a model where the short-range part of the forces is given by the quark cluster model and the long- and medium-range forces by well established meson exchanges. The investigation is performed using different quark cluster models coming from different sets of quark-quark interactions. The predictions of this model are compared not only with the phase shifts but also directly with the experimental observables. Agreement with the existing pp and np world set of data is poor. This suggests that the current description of the nucleon-nucleon interaction, at short distances, in the framework of the nonrelativistic quark models, is at present only qualitative.

Identifiants :
  • DOI : 10.1103/PhysRevC.65.034004