Alpha-Like Four-Nucleon Correlations Viewed in Single-Particle Mean Field

Roles of proton-neutron interactions in alpha-like four-nucleon correlations

An extended pairing plus QQ force model, which has been shown to successfully explain the nuclear binding energy and related quantities such as the symmetry energy, is applied to study the alpha-like four-nucleon correlations in 1f7/2 shell nuclei. The double difference of binding energies, which displays a characteristic behavior at N ≈ Z, is interpreted in terms of the alpha-like correlations...

The Single Particle Potential in Mean-Field Theory

Mean-field beyond mean-field: the single particle view for moderately to strongly coupled charged fluids.

In a counter-ion only charged fluid, Coulomb coupling is quantified by a single dimensionless parameter. Yet, the theoretical treatment of moderately to strongly coupled charged fluids is a difficult task, central to the understanding of a wealth of soft matter problems, including biological systems. We show that the corresponding coupling regime can be remarkably well described by a single par...

Mean field calculations of nucleon-nucleus scattering.

Corrections to the first order term of the multiple scattering expansion of the nucleon-nucleus optical potential due to the propagation of the projectile nucleon in the target nucleus mean field are estimated. The effects of nonlocalities of the nucleon-nucleon transition amplitude are included. Calculations are performed for nucleon scattering from O and Pb at 100, 200, and 400 MeV incident e...

Pairing Correlations beyond the Mean Field

Self-consistent mean-field models are one of the standard approaches in nuclear structure theory, see Ref.1 for a recent review. For heavy nuclei, they are the only microscopic method that can be systematically applied on a large scale. Over the last few years, we were involved in the development of a method, that adds long-range correlations to self-consistent mean-field by projection after va...