Journalartikel

Jahr der Veröffentlichung: 1987

Seiten: 560-572

Zeitschrift: Nuclear Physics A: Nuclear and Hadronic Physics

Bandnummer: 466

Heftnummer: 3-4

ISSN: 0375-9474

eISSN: 1873-1554

DOI Link: https://doi.org/10.1016/0375-9474(87)90457-X

Verlag: Elsevier

Abstract: 

We have intestigated the B = 2 system in the linear and the nonlinear σ-model with explicit quark degrees of freedom. We have found that the solution of lowest energy is obtained by assuming the hedgehog ansatz and occupying the 0⁺ and 1⁺ Orbitals, which leads to meson fields with winding number n = 1. The B = 2 rms radius is significantly larger than that for the B = 1 system, whereas the potential energy V(0) of the various B = 2 configurations strongly depends on the parameters. A solution corresponding to the skyrmion model with n = B = 2 is obtained by occupation of the 0⁺ and 0⁻ orbitals, but has a significantly higher energy than the n = 1 configuration.

Harvard-Zitierstil: Blättel, B., Kunz, J., Mosel, U. and Reitz, T. (1987) The B = 2 system in the chiral σ-model with quarks, Nuclear Physics A: Nuclear and Hadronic Physics, 466(3-4), pp. 560-572. https://doi.org/10.1016/0375-9474(87)90457-X

APA-Zitierstil: Blättel, B., Kunz, J., Mosel, U., & Reitz, T. (1987). The B = 2 system in the chiral σ-model with quarks. Nuclear Physics A: Nuclear and Hadronic Physics. 466(3-4), 560-572. https://doi.org/10.1016/0375-9474(87)90457-X