Electromagnetic nucleon properties and quark sea polarization in the Nambu-Jona-Lasinio model
A. Z. Gorski, Chr. V. Christov, K. Goeke
Abstract
In this paper we present the derivation as well as the numerical results for all electromagnetic form factors of the nucleon within the semibosonized Nambu--Jona-Lasinio (chiral quark soliton) model. Other observables, namely the nucleon mean squared radii, the magnetic moments and the nucleon--Δ splitting are also computed. The calculation has been done taking into account the quark sea polarization effects. The final results, including rotational 1/Nc corrections, are compared with the existent experimental data and they are found to be in a good agreement for the constituent quark mass of 400--420\ MeV.
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