Self-consistent tensor effects on nuclear matter system under relativistic Hartree-Fock approach

TL;DR

This paper investigates how tensor forces, naturally included in the relativistic Hartree-Fock framework, affect nuclear matter properties and neutron star characteristics without extra parameters.

Contribution

It demonstrates the significant impact of tensor effects on nuclear matter and neutron star properties within a self-consistent relativistic approach without additional free parameters.

Findings

Tensor forces influence saturation and symmetry energy.

Tensor effects alter the equation of state of nuclear matter.

Neutron star properties are affected by tensor interactions.

Abstract

With the relativistic representation of the nuclear tensor force that is included automatically by the Fock diagrams, we explored the self-consistent tensor effects on the properties of nuclear matter system. The analysis were performed within the density-dependent relativistic Hartree-Fock (DDRHF) theory. The tensor force is found to notably influence the saturation mechanism, the equation of state and the symmetry energy of nuclear matter, as well as the neutron star properties. Without introducing any additional free parameters, the DDRHF approach paves a natural way to reveal the tensor effects on the nuclear matter system.