论文标题
探索磁铁中三角洲重子的影响
Exploring the effects of Delta Baryons in magnetars
论文作者
论文摘要
强磁场可以改变物质的显微镜组成，并对出色的宏观特性产生影响。在这种情况下，我们首次研究了磁铁中Spin-3/2 $δ$ baryons出现的可能性。我们利用两个不同的相对论模型来考虑强大磁场的影响，考虑到Landau水平的影响以及与所有Baryons和Leptons的旋转成正比的强度磁场的影响。特别是，我们首次分析了$δ$ baryons的AMM的效果。 {我们还获得了与EOS模型相对应的全局特性，并研究了$δ$ baryons的相应作用。}我们发现它们比Hyperos相比，这会导致异磷蛋白不对称的增加和自旋极化的减少。我们还发现，与引入新的自由度时通常发生的情况相反，$δ$ s不会使EOS显着柔软，并且磁铁的质量较小。最后，给定恒星内的磁场分布不受$δ$ s的存在影响。
Strong magnetic fields can modify the microscopic composition of matter with consequences on stellar macroscopic properties. Within this context, we study, for the first time, the possibility of the appearance of spin-3/2 $Δ$ baryons in magnetars. We make use of two different relativistic models for the equation of state of dense matter under the influence of strong magnetic fields considering the effects of Landau levels and the anomalous magnetic moment (AMM) proportional to the spin of all baryons and leptons. In particular, we analyze the effects of the AMM of $Δ$ baryons in dense matter for the first time. {We also obtain global properties corresponding to the EoS models numerically and study the corresponding role of the $Δ$ baryons.} We find that they are favored over hyperons, which causes an increase in isopin asymmetry and a decrease in spin polarization. We also find that, contrary to what generally occurs when new degrees of freedom are introduced, the $Δ$s do not make the EoS significantly softer and magnetars less massive. Finally, the magnetic field distribution inside a given star is not affected by the presence of $Δ$s.
