Quark-hadron duality and the nuclear EMC effect

Details Quark-hadron duality and the nuclear EMC effect Quark-hadron duality and the nuclear EMC effect

2001-10-26

arxiv.org/abs/nucl-th/0110071v3

Eur.Phys.J.A14:105-112,2002

Physics

Nuclear Physics

Nuclear Theory

16 pages, 3 figures; typos corrected, references added, fig. 2 labels corrected; version to appear in Eur. Phys. J. A

Scientific paper

10.1007/s10050-002-8795-0

Recent data on polarized proton knockout reactions off He-4 nuclei suggest a small but nonzero modification of proton electromagnetic form factors in medium. Using model independent relations derived on the basis of quark-hadron duality, we relate the medium modification of the form factors to the modification at large x of the deep-inelastic structure function of a bound proton. This places strong constraints on models of the nuclear EMC effect which assume a large deformation of the intrinsic structure of the nucleon in medium.

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