Nuclear Density Dependence of In-Medium Polarization

Abstract

It is shown that polarization transfer measurements $(\vec{e},e^{\prime }\vec{p})$ on a specific target nucleus can provide constraints on the ratio of the in-medium electric to magnetic form factor. Thereby one exploits the fact that proton knockout from single-particle levels exhibit a specific sensitivity to the effective nuclear density. It is shown that in ${}^{12}$C the effective nuclear density for $s$-shell knockout is about twice as high as for $p$-shell knockout. With current model predictions for the in-medium form factors, one obtains measurable modifications of the order of 5% in the ratios of the double polarization observables between those single-particle levels.

References in corpus (7)

• Short Range Correlations and the EMC Effect
• Polarization Transfer in the 4He(e,e'p)3H Reaction at Q^2 = 0.8 and 1.3 (GeV/c)^2
• On the dependence of the wave function of a bound nucleon on its momentum and the EMC effect
• Color transparency and short-range correlations in exclusive pion photo- and electroproduction from nuclei
• Neutron Properties in the Medium
• On the density dependence of single-proton and two-proton knockout reactions under quasifree conditions
• Modeling final-state interactions with a relativistic multiple-scattering approximation