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

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

1993-12-29

arxiv.org/abs/hep-ph/9312351v1

Physics

High Energy Physics

High Energy Physics - Phenomenology

TeX, 25 pages with 9 figures (uuencoded) included, report RUB--TPII--56/93

Scientific paper

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--$\Delta$ splitting are also computed. The calculation has been done taking into account the quark sea polarization effects. The final results, including rotational $1/N_c$ 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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