Well funneled nuclear structure landscape: renormalization

TL;DR

This paper discusses how combining various nuclear reactions and renormalizing interactions can accurately describe nuclear structure, providing a comprehensive and quantitative theoretical framework.

Contribution

It introduces a unified renormalization approach for both single-particle and collective nuclear motions to match experimental data.

Findings

Renormalization of interactions improves agreement with experimental observations.

Self-energy and vertex corrections are crucial for accurate nuclear modeling.

Unified approach accounts for both single-particle and collective nuclear features.

Abstract

A complete characterization of the structure of nuclei can be obtained by combining information arising from inelastic scattering, Coulomb excitation and $\gamma-$decay, together with one- and two-particle transfer reactions. In this way it is possible to probe the single-particle and collective components of the nuclear many-body wavefunction resulting from their mutual coupling and diagonalising the low-energy Hamiltonian. We address the question of how accurately such a description can account for experimental observations. It is concluded that renormalizing empirically and on equal footing bare single-particle and collective motion in terms of self-energy (mass) and vertex corrections (screening), as well as particle-hole and pairing interactions through particle-vibration coupling allows theory to provide an overall, quantitative account of the data.