Contribution of isovector mesons to the symmetry energy in a microscopic model

TL;DR

This paper investigates how isovector mesons like nd ho contribute to the symmetry energy using a comprehensive microscopic model, highlighting the crucial role of the pion in isospin-sensitive nuclear systems.

Contribution

It introduces a microscopic model that includes all key isovector mesons to accurately assess their impact on symmetry energy.

Findings

Pion significantly influences the symmetry energy in isospin-sensitive systems.

Isovector mesons nd ho contribute notably to the potential energy part of symmetry energy.

A comprehensive meson-inclusive model is essential for realistic nuclear matter studies.

Abstract

We examine the potential energy contribution to the symmetry energy (in the parabolic approximation) arising from the isovector mesons, \pi, \rho, and \delta. The significance of a microscopic model which incorporates all important mesons is revealed. In particular, we demonstrate the importance of the pion for a realistic investigation of isospin-sensitive systems.