Tensor force induced isospin-dependence of short-range nucleon-nucleon correlation and high-density behavior of nuclear symmetry energy

TL;DR

This paper investigates how the tensor force influences short-range nucleon correlations and the high-density behavior of nuclear symmetry energy, revealing that it significantly softens the symmetry energy at high densities.

Contribution

It introduces a quantitative analysis of tensor force effects on nucleon correlations and nuclear matter equations of state, based on recent experimental data.

Findings

Tensor force induces isospin-dependent SRC effects.

Short-range correlations soften the nuclear symmetry energy.

High-density symmetry energy is significantly affected.

Abstract

Quantitative information on the tensor force induced isospin-dependence of short-range nucleon-nucleon correlation (SRC) extracted from recent J-Lab experiments was used in constraining the high-momentum tails of single nucleon momentum distributions in both symmetric nuclear matter (SNM) and pure neutron matter (PNM). Its effects on the Equations of State of SNM and PNM as well as the nuclear symmetry energy are investigated. It is found that the tensor force induced isospin-dependence of SRC softens significantly the nuclear symmetry energy especially at supra-saturation densities.