Relations between three-particle interactions in nuclear matter to observable quantities

TL;DR

This paper explores the connection between three-particle interactions in nuclear matter and observable quantities, deriving model-independent relations and analyzing the structure of three-particle scattering amplitudes using Fermi liquid theory.

Contribution

It introduces model-independent relations linking three-particle interactions to measurable nuclear matter properties and elucidates the structure of three-particle scattering amplitudes within Fermi liquid theory.

Findings

Derived relations between symmetry energy slope and incompressibility to three-particle parameters

Estimated three-particle interaction effects using empirical data

Showed emergence of three-particle cluster diagrams in Fermi liquid theory

Abstract

In the first part of this paper, we use the framework of the Fermi liquid theory to derive model-independent relations between the slope parameters of the symmetry energy and of the incompressibility in nuclear matter to three-particle interaction parameters. Based on these relations, we present simple estimates and compare with the empirical information. In the second part, we discuss the general structure of the three-particle scattering amplitude in nuclear matter, and use methods similar to the Bethe-Brueckner-Goldstone theory to show how three-particle cluster diagrams emerge naturally in the Fermi liquid theory.