Saturation properties of nuclear matter in the presence of strong magnetic field

TL;DR

This study investigates how strong magnetic fields influence the saturation properties of symmetric nuclear matter, revealing changes in saturation density, energy, magnetic susceptibility, and the equation of state at fields above 3×10^17 G.

Contribution

It provides new insights into the effects of intense magnetic fields on nuclear matter's saturation properties, including magnetic susceptibility and equation of state modifications.

Findings

Saturation density and energy increase with magnetic field strength.

Magnetic susceptibility becomes negative, indicating diamagnetism.

High magnetic fields cause stiffening of the equation of state due to magnetization.

Abstract

Different saturation properties of cold symmetric nuclear matter in the strong magnetic field have been considered. We have seen that for magnetic fields about $B> 3 \times 10 ^ {17}\ G$, {for both cases with and without nucleon anomalous magnetic moments}, the saturation density and saturation energy grow by increasing the magnetic field. It is indicated that the magnetic susceptibility of symmetric nuclear matter becomes negative showing the diamagnetic response especially at $B< 3 \times 10 ^ {17}\ G$. We have found that for the nuclear matter, the magnitude of orbital magnetization reaches the higher values comparing to the spin magnetization. Our results for the incompressibility show that at high enough magnetic fields, i.e. $B> 3 \times 10 ^ {17}\ G$, {the softening of equation of state caused by Landau quantization is overwhelmed by stiffening due to the magnetization of nuclear matter.} We have shown that the effects of strong magnetic field on nuclear matter may affect the constraints on the equation of state of symmetric nuclear matter obtained applying the experimental observable.