On the density dependence of single-proton and two-proton knockout reactions under quasifree conditions

Abstract

We consider high-energy quasifree single- and two-proton knockout reactions induced by electrons and protons and address the question what target-nucleus densities can be effectively probed after correcting for nuclear attenuation (initial- and final-state interactions). Our calculations refer to ejected proton kinetic energies of 1.5 GeV, the reactions (e,e'p), (γ,pp) and (p,2p) and a carbon target. It is shown that each of the three reactions is characterized by a distinctive sensitivity to the density of the target nucleus. The bulk of the (γ,pp) strength stems from the high-density regions in the deep nuclear interior. Despite the strong attenuation, sizable densities can be probed by (p,2p) provided that the energy resolution allows one to pick nucleons from s orbits. The effective mean densities that can be probed in high-energy (e,e'p) are of the order of 30-50% of the nuclear saturation density.

arXiv comment10 pages, 2 figures

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Cited by in corpus (10)

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• Unperturbed inverse kinematics nucleon knockout measurements with a 48 GeV/c carbon beam
• Factorization of exclusive electroinduced two-nucleon knockout
• Target Polarization for ${}^2\vec{H}(e,e^{\prime }p)n$ at GeV energies
• Phase-space distributions of nuclear short-range correlations
• Ejectile Polarization for ${}^{2}H(e,e^{\prime }\vec{p})n$ at GeV energies
• What densities can be effectively probed in quasifree single-nucleon knockout reactions?
• Nuclear Density Dependence of In-Medium Polarization
• Modeling final-state interactions with a relativistic multiple-scattering approximation