Electromagnetic nucleon properties and quark sea polarization in the Nambu-Jona-Lasinio model
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-- 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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