Strange and Non-Strange Meson Fluctuations off the Nambu--Jona-Lasinio Soliton

Details Strange and Non-Strange Meson Fluctuations off the Nambu--Jona-Lasinio Soliton Strange and Non-Strange Meson Fluctuations off the Nambu--Jona-Lasinio Soliton

1993-04-29

arxiv.org/abs/hep-ph/9304314v1

Phys.Lett.B313:377-388,1993

Physics

High Energy Physics

High Energy Physics - Phenomenology

15 pages (four figures, not included available upon request), UNITU-THEP-3/1993

Scientific paper

10.1016/0370-2693(93)90007-5

Mesonic fluctuations off the chiral soliton of the Nambu--Jona-Lasinio model are investigated. The hedgehog configuration is proven to represent a local extremum of the action. The method is applied to flavor SU(3) and the energy eigenvalue of the kaon bound state in the soliton background is evaluated which is the key ingredient for the Callan-Klebanov approach to hyperons. The energy eigenvalue of the corresponding strange-valence-quark is found to be 183MeV higher than the energy eigenvalue of the up-valence-quark when 400MeV is assumed for the up-quark constituent mass.

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