What densities can be effectively probed in quasifree single-nucleon knockout reactions?

Abstract

We address the issue whether quasifree single-nucleon knockout measurements carry sufficient information about the nuclear interior. To this end, we present comparisons of the reaction probability densities for $A(e,e^{\prime }p)$ and $A(p,2p)$ in quasifree kinematics for the target nuclei ${}^4$He, ${}^{12}$C, ${}^{56}$Fe, and ${}^{208}$Pb. We adopt a comprehensive framework based on the impulse approximation and on a relativized extension of Glauber multiple-scattering reaction theory in which the medium effects related to short-range correlations (SRC) are implemented. It is demonstrated that SRC weaken the effect of attenuation. For light target nuclei, both the quasifree $(p,2p)$ and $(e,e^{\prime }p)$ can probe average densities of the same order as nuclear saturation density ${\rho }_0$. For heavy nuclei like ${}^{208}$Pb, the probed average densities are smaller than $0.1{\rho }_0$ and the $(e,e^{\prime }p)$ reaction is far more efficient in probing the bulk regions than $(p,2p)$.

11 pages, 12 figures

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Cited by in corpus (6)

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• Binding-energy independence of reduced spectroscopic strengths derived from (p, 2p) and (p, pn) reactions with nitrogen and oxygen isotopes
• Constraining nucleon high momentum in nuclei
• Nuclear Density Dependence of In-Medium Polarization
• Fluctuations of collective coordinates and convexity theorems for energy surfaces