Neutron skins probed in proton knockout from neutron-rich nuclei
C.A Bertulani, R.V. Lobato

TL;DR
This paper develops a unified theoretical framework for proton knockout reactions to probe neutron skins in neutron-rich nuclei, revealing systematic sensitivities of reaction observables to neutron-skin thickness and nuclear symmetry energy.
Contribution
It introduces a probabilistic Glauber-based model combined with microscopic densities to analyze (p,2p) and (p,3p) reactions, highlighting their sensitivity to neutron skins.
Findings
Cross sections decrease with increasing neutron excess.
Momentum dispersions are sensitive to neutron-skin thickness.
Two-proton removal reactions show stronger sensitivity to neutron skins.
Abstract
Proton-induced quasifree knockout reactions provide a powerful probe of nuclear single-particle structure and reaction dynamics in both stable and neutron-rich nuclei. In this work we develop a unified theoretical framework for the calculation of inclusive (p,2p) and sequential (p,3p) reaction cross sections and fragment momentum distributions at intermediate and relativistic energies. The approach is based on a probabilistic extension of Glauber multiple-scattering theory combined with microscopic nuclear densities obtained from Hartree-Fock-Bogoliubov calculations using Skyrme energy-density functionals. We focus in particular on the sensitivity of total cross sections and longitudinal momentum dispersions to neutron-skin thickness along isotopic chains. Our results indicate that both (p,2p) and (p,3p) reactions exhibit a systematic decrease of cross section and momentum width with…
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Taxonomy
TopicsNuclear physics research studies · Astronomical and nuclear sciences · Cold Fusion and Nuclear Reactions
