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Strangeness content of the nucleon within the NJL soliton model

Abdellatif Abada·H. Weigel·R. Alkofer·H. Reinhardt
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Abstract

We investigated the form factors of the nucleon associated with the nonet vector current in the framework of the generalized Yabu--Ando approach to the chiral soliton of the Nambu--Jona--Lasinio model. We introduce a variational parameter to improve the predictions for the baryon mass splittings and, in addition, we take into account $1/N_c$ rotational corrections to accommodate the empirical isovector magnetic moment of the nucleon. We find that the strange magnetic moment lies between -0.05 and 0.25.

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Abdellatif Abada, H. Weigel, R. Alkofer, H. Reinhardt. 1995-08-18. Strangeness content of the nucleon within the NJL soliton model. https://arxiv.org/abs/hep-ph/9508328

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