Chiral solitons in nuclei: Electromagnetic form factors

Details Chiral solitons in nuclei: Electromagnetic form factors Chiral solitons in nuclei: Electromagnetic form factors

2004-07-26

arxiv.org/abs/nucl-th/0407093v2

Phys.Rev.C70:065205,2004

Physics

Nuclear Physics

Nuclear Theory

13 pages, 6 figures, Added references and a clearer connection to experiment

Scientific paper

10.1103/PhysRevC.70.065205

We calculate the electromagnetic form factors of a bound proton. The Chiral Quark-Soliton model provides the quark and antiquark substructure of the proton, which is embedded in nuclear matter. This procedure yields significant modifications of the form factors in the nuclear environment. The sea quarks are almost completely unaffected, and serve to mitigate the valence quark effect. In particular, the ratio of the isoscalar electric to the isovector magnetic form factor decreases by 20% at Q^2=1 GeV^2 at nuclear density, and we do not see a strong enhancement of the magnetic moment.

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