
pmid: 10012156
Quand ils sont suffisamment realistes pour la description des mesons, les lagrangiens effectifs de type Skyrme, proposes anterieurement, predisent des masses qui sont trop elevees pour le nucleon. On essaie de resoudre ce probleme en etudiant les effets du terme quantique, origine par le meson θ(J pc =0 ++ , I=0). Quand il est stabilise par un terme d'ordre 6. On etudie la possibilite de nouveaux types de solutions pour les equations d'Euler-Lagrange, donnant naissance a une limite de phase a l'interieur du soliton. Elles possedent une propriete excellente d'abaisser, de facon significative, la masse des solitons et donc les masses des baryons
[PHYS.HTHE]Physics [physics]/High Energy Physics - Theory [hep-th]
[PHYS.HTHE]Physics [physics]/High Energy Physics - Theory [hep-th]
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