Effects of the Symmetry energy slope on the exotic content of the neutron stars

Luiz L. Lopes

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arXiv · 2605.30554

Effects of the Symmetry energy slope on the exotic content of the neutron stars

Luiz L. Lopes

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Abstract

By varying the symmetry energy slope ($L$), I investigate how the exotic content within the interiors of neutron stars changes and how it affects both macroscopic and microscopic quantities. Using two different parametrizations (L3$\omega\rho$ and BigApple), and three different possibilities about the neutron star core (nucleons+hyperons, nucleons+deltas, nucleons+hyperons+deltas), I show that, for the models analyzed in this work, changing the slope barely changes the amount of hyperons, but it can strongly suppress the $\Delta$ resonances for large values of $L$. I also show that, in general, the presence of exotic content will be more evident for lower values of $L$ than for large ones. Differences and similarities between the two parametrizations are also analyzed.

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Luiz L. Lopes. 2026-05-28. Effects of the Symmetry energy slope on the exotic content of the neutron stars. https://arxiv.org/abs/2605.30554

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