Dark dimension, the swampland, and the origin of cosmic rays beyond the Greisen-Zatsepin-Kuzmin barrier
Dark dimension, the swampland, and the origin of cosmic rays beyond the Greisen-Zatsepin-Kuzmin barrier
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DOI：
10.1103/physrevd.106.116022
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发表时间：
2022-05
影响因子：
5
通讯作者：
L. Anchordoqui
中科院分区：
文献类型：
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作者：
L. Anchordoqui
最近，有人指出，当沼泽地计划的基本思想与宇宙学层次问题（即暗能量在普朗克单位中的微小性）相结合，并一起面对实验时，会导致预测存在一个具有微米范围内特征长度尺度的额外维度（称为暗维度）。我们提出了一个可行的测试程序，使用最高能量的宇宙射线探测黑暗的维度。
Very recently, it was pointed out that when basic ideas of the Swampland program are combined with the cosmological hierarchy problem (i.e. the smallness of the dark energy in Planck units) and together are confronted to experiment lead to the prediction of the existence of a single extra-dimension (dubbed the dark dimension) with characteristic length-scale in the micron range. We propose a feasible test procedure to probe the dark dimension using the highest energy cosmic rays.