Nucleons in the nuclear medium - possible modi?fications and sensitive observables
Guy Ron (Hebrew University of Jerusalem)

Nucleon modifications in the nuclear matter have been suggested as possible explanation of different phenomena, such as the EMC effect and quenching of the Coulomb sum rule beyond the N-N interaction. Unam- biguous evidence these modifications has yet to be found. A sensitive probe for such modification, which is predicted to minimize the effects of final state interactions and meson exchange currents is the ratio of the electric to magnetic nucleon form factors.
I will present the overall concept of in medium nucleon modification and results from several experiments which measured the form factor ratio of protons in the nuclear medium. Recent theoretical ideas suggest that the modification of the form factor ratio for neutrons in the medium is more pronounced than for the proton case. These results will be discussed and a possible experimental proposal to measure such modifications will be outlined.