Abstract:
Recent data on polarized proton knockout reactions off 4He 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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Received: 26 October 2001 / Accepted: 25 February 2002
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Melnitchouk, W., Tsushima, K. & Thomas, A. Quark-hadron duality and the nuclear EMC effect. Eur Phys J A 14, 105–112 (2002). https://doi.org/10.1140/epja/iepja1323
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DOI: https://doi.org/10.1140/epja/iepja1323