高维规范理论中的暖暗物质
Warm Dark Matter from Higher-Dimensional Gauge Theories
摘要：
质量在千电子伏范围内的暖暗物质粒子通过大量的退耦物种与规范理论中的大群表示联系在一起。在本文中，我们解决WDM费米自由度从这样的陈述。将高维粒子物理学理论与宇宙学研究和天体物理观测联系起来，我们的方法是双重的，即，它包括来自高维表示的现实模型和来自对照观测测试的模拟的约束。从超代数在特殊的周期性理论，我们讨论了几个对称性减少，我们认为几个代表，容纳了大量的自由度。我们隔离的模型，自然地容纳标准模型表示和费米子暗物质的协议与大尺度和小尺度的限制。该模型考虑了$D=27+3$中膜的相交，一方面为标准模型提供了自由度，另一方面为暗物质提供了2048个费米子自由度，对应于$\sim$ 2 keV粒子质量。在这种情况下，我们讨论的理论含义和可观察到的预测。
英文摘要：
Warm dark matter particles with masses in the keV range have been linked with the large group representations in gauge theories through a high number of species at decoupling. In this paper, we address WDM fermionic degrees of freedom from such representations. Bridging higher-dimensional particle physics theories with cosmology studies and astrophysical observations, our approach is two-folded, i.e., it includes realistic models from higher-dimensional representations and constraints from simulations tested against observations. Starting with superalgebras in exceptional periodicity theories, we discuss several symmetry reductions and we consider several representations that accommodate a high number of degrees of freedom. We isolate a model that naturally accommodates both the standard model representation and the fermionic dark matter in agreement with both large and small-scale constraints. This model considers an intersection of branes in $D=27+3$ in a manner that provides the degrees of freedom for the standard model on one hand and 2048 fermionic degrees of freedom for dark matter, corresponding to a $\sim$2 keV particle mass, on the other. In this context, we discuss the theoretical implications and the observable predictions.
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