Pushing the Nambu-Jona-Lasinio soliton and the zero-point energy
P V Pobylitsa; E Ruiz Arriola; Th Meissner; F Grummer; K Goeke; W Broniowski; P V Pobylitsa; Inst. fur Theor. Phys. II, Ruhr-Univ. Bochum, Germany; E Ruiz Arriola; Inst. fur Theor. Phys. II, Ruhr-Univ. Bochum, Germany; Th Meissner; Inst. fur Theor. Phys. II, Ruhr-Univ. Bochum, Germany; F Grummer; Inst. fur Theor. Phys. II, Ruhr-Univ. Bochum, Germany; K Goeke; Inst. fur Theor. Phys. II, Ruhr-Univ. Bochum, Germany; W Broniowski; Inst. fur Theor. Phys. II, Ruhr-Univ. Bochum, Germany
Журнал:
Journal of Physics G: Nuclear and Particle Physics
Дата:
1992-09-01
Аннотация:
The authors consider the collective quantization of translational degrees of freedom of the hedgehog soliton in the Nambu-Jona-Lasinio model. They show explicitly that for an O(4)-invariant regularization scheme in Euclidean space-time the translational mass obtained in the perturbative pushing model coincides with the static mass. Zero-point energies for translation and rotation are evaluated numerically. The nucleon mass appears to be around 900 MeV.
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