Asymmetry dependence of proton correlations

Abstract

A dispersive optical model analysis of p+40Ca and p+48Ca interactions has been carried out. The real and imaginary potentials have been constrained from fits to elastic scattering data, reaction cross sections, and level properties of valence hole states deduced from (e,e'p) data. The surface imaginary potential was found to be larger overall and the gap in this potential on either side of the Fermi energy was found to be smaller for the neutron-rich p+48Ca system. These results imply that protons with energies near the Fermi surface experience larger correlations with increasing asymmetry.

4 pages, 5 figures

Cited by in corpus (16)

• Towards Understanding Astrophysical Effects of Nuclear Symmetry Energy
• Dense Nuclear Matter Equation of State from Heavy-Ion Collisions
• Quenching of single-particle strength from direct reactions with stable and rare-isotope beams
• Toward a complete theory for predicting inclusive deuteron breakup away from stability
• Quasiparticle and quasihole states of nuclei around 56Ni
• Optical potentials for the rare-isotope beam era
• Novel applications of the dispersive optical model
• Nonlocal extension of the dispersive-optical-model to describe data below the Fermi energy
• Spectroscopic factors in dripline nuclei
• Elastic nucleon-nucleus scattering as a direct probe of correlations beyond the independent-particle model
• Many-body Propagator Theory with Three-Body Interactions: a Path to Exotic Open Shell Isotopes
• Experimental study of the ${}^{40,48}$Ca+ ${}^{40,48}$Ca reactions at 35 MeV/nucleon
• Self-consistent Green's functions with three-body forces
• Nucleon Short-Range Correlations and High-Momentum Dynamics: Implications on the Equation of State of Dense Matter
• Coupled-cluster computations of optical potential for medium-mass nuclei
• Investigating the weak charge of ${}^{48}$Ca using a dispersive optical model