2004/07/31 by Jason R. Smith, Gerald A. Miller · 4 citations
Physics and Astronomy · #High-Energy Particle Collisions Research #Quantum Chromodynamics and Particle Interactions #Quantum, superfluid, helium dynamics #nucl-th
paper · pdf · doi:10.1103/physrevc.70.065205
published as Phys.Rev.C70:065205,2004 · 13 pages, 6 figures, Added references and a clearer connection to experiment
arxiv created 2004/09/08 · openalex publication_date 2004/12/22 · arxiv updated 2009/12/01 · openalex created_date 2025/10/10 · openalex updated_date 2026/07/28
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 Q2=1\phantom\rule0.3em0exGeV2 at nuclear density, and we do not see a strong enhancement of the magnetic moment.