Many-body Propagator Theory with Three-Body Interactions: a Path to Exotic Open Shell Isotopes

17th International Conference on Recent Progress in Many-Body Theories

Barbieri, C.^1

Department of Physics, University of Surrey, Guildford GU2 7XH, United Kingdom^1

关键词: Ab initio approach;    Ab initio prediction;    Many-body interactions;    Natural approaches;    Nuclear structure;    Open-shell systems;    Predictive power;    Three-body interaction;   

Others  :  https://iopscience.iop.org/article/10.1088/1742-6596/529/1/012005/pdf
DOI  :  10.1088/1742-6596/529/1/012005

来源: IOP

【 摘 要 】

Ab-initio predictions of nuclei with masses up to A∼100 or more are becoming possible thanks to novel advances in computations and in the formalism of many-body physics. Some of the most fundamental issues include how to deal with many-nucleon interactions, how to calculate degenerate - open shell - systems, and pursuing ab-initio approaches to reaction theory. Self-consistent Green's function (SCGF) theory is a natural approach to address these challenges. Its formalism has recently been extended to three- and many-body interactions and reformulated within the Gorkov framework to reach semi-magic open shell isotopes. These exciting developments, together with the predictive power of chiral nuclear Hamiltonians, are opening the path to understanding large portions of the nuclear chart, especially within the sd and pf shells. The present talk reviews the most recent advances in ab-initio nuclear structure and many-body theory that have been possible through the SCGF approach.