On the strange vector form factors of the nucleon in the NJL soliton model

Details On the strange vector form factors of the nucleon in the NJL soliton model On the strange vector form factors of the nucleon in the NJL soliton model

1995-03-06

arxiv.org/abs/hep-ph/9503241v1

Phys.Lett.B353:20-26,1995

Physics

High Energy Physics

High Energy Physics - Phenomenology

9 pages, one figure, postscript file submitted as uuencoded compressed file

Scientific paper

10.1016/0370-2693(95)00534-R

Within the Nambu--Jona--Lasinio model strange degrees of freedom are incorporated into the soliton picture using the collective approach of Yabu and Ando. The form factors of the nucleon associated with the nonet vector current are extracted. The numerical results provide limits for the strange magnetic moment: $-0.05\le\mu_s\le0.25$. For the strange magnetic form factor of the nucleon the valence quark and vacuum contributions add coherently while there are significant cancellations for the strange electric form factor.

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