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

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.

16 pages, 1 table, 7 figures, European Physical Journal A 52 (2016) accepted

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• Neutron star calculations with the phenomenological three-nucleon force
• Estimation of the number of negative eigenvalues of magnetic Schrödinger operators in a strip