The Skyrmion limit of the Nambu--Jona-Lasinio soliton

Details The Skyrmion limit of the Nambu--Jona-Lasinio soliton The Skyrmion limit of the Nambu--Jona-Lasinio soliton

1994-07-15

arxiv.org/abs/hep-ph/9407305v1

Mod.Phys.Lett.A10:67-78,1995

Physics

High Energy Physics

High Energy Physics - Phenomenology

11 LaTeX pages 2 figures appended as postscript file, UNIT\"U-THEP-14/1994

Scientific paper

10.1142/S0217732395000089

The special role of the isoscalar mesons ($\sigma$ and $\omega$) in the NJL soliton is discussed. Stable soliton solutions are obtained when the most general ansatz compatible with vanishing grand spin is assumed. These solutions are compared to soliton solutions of a purely pseudoscalar Skyrme type model which is related to the NJL model by a gradient expansion and the limit of infinitely heavy (axial-) vector mesons.

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