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arXiv 1606.09336hep-ph
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强磁场中冷密夸克物质的朗道能级

Landau levels of cold dense quark matter in a strong magnetic field

Xin-Jian Wen, Jun-Jun Liang

摘要:

在SU(3)NJL模型的框架下,分别研究了常规耦合和依赖磁场耦合下奇异夸克物质的朗道被占能级。在较低密度下,朗道能级主要由u和d夸克主导。s夸克起始的化学势的阈值显示在$μ$ - $B$平面上。磁场依赖的运行耦合可以通过降低$s$夸克的动力学质量来拓宽三味物质的区域。在$s$夸克出现之前,轻夸克的朗道能级数直接依赖于磁场强度$B$,通过简单的反比例关系$k_{i,\mathrm{max}}\approx B_i^0/B$与$B_d^0=5\times 10^{19}$ G,它大约是$u$夸克在共同化学势下的$B_u^0$的2倍。当磁场增加到$B^0_d$时,几乎所有三种味道都处于最低朗道能级。

英文摘要:

The occupied Landau levels of strange quark matter are investigated in the framework of the SU(3) NJL model with a conventional coupling and a magnetic-field dependent coupling respectively. At lower density, the Landau levels are mainly dominated by u and d quarks. Threshold values of the chemical potential for the s quark onset are shown in the $μ$-$B$ plane. The magnetic-field-dependent running coupling can broaden the region of three-flavor matter by decreasing the dynamical masses of $s$ quarks. Before the onset of $s$ quarks, the Landau level number of light quarks is directly dependent on the magnetic field strength $B$ by a simple inverse proportional relation $k_{i,\mathrm{max}}\approx B_i^0/B$ with $B_d^0=5\times 10^{19}$ G, which is approximately 2 times $B_u^0$ of $u$ quarks at a common chemical potential. When the magnetic field increases up to $B^0_d$, almost all three flavors are lying in the lowest Landau level.

机构、总结、中文摘要均由AI分析而来,可能存在错误,请以论文正文为准。

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