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| Hauptseite > Publikationsdatenbank > The nucleon-nucleon interaction and properties of the nucleon in a pi-rho-omega soliton model including a dilaton field |
| Hauptseite > Publikationsdatenbank > The nucleon-nucleon interaction and properties of the nucleon in a pi-rho-omega soliton model including a dilaton field |
| Journal Article | PreJuSER-34080 |
; ;
2000
North-Holland Publ.
Amsterdam
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Abstract: We investigate an extended chiral soliton model which includes pi, rho, omega and sigma mesons as explicit degrees of freedom. The Lagrangian incorporates chiral symmetry and broken scale invariance. A scalar-isoscalar sigma-meson is associated with a quarkonium dilaton field with a mass m(sigma) approximate to 550...720 MeV. We show that the inclusion of the scalar field slightly changes the static and electromagnetic properties of the nucleon. In contrast, it plays a significant role in nucleon-nucleon dynamics and gives an opportunity to describe well the two-nucleon interaction. (C) 2000 Published by Elsevier Science B.V. All rights reserved.
Keyword(s): J ; Skyrme model (auto) ; sigma meson (auto) ; nucleon properties (auto) ; meson-nucleon form factors (auto) ; nucleon-nucleon interaction (auto)
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