Dick Rainer
Department of Physics and Engineering Physics, University of Saskatchewan, 116 Science Place, Saskatoon, SK S7N 5E2 Canada.
Eur Phys J C Part Fields. 2017;77(12):841. doi: 10.1140/epjc/s10052-017-5415-3. Epub 2017 Dec 7.
A dark sector with a solitonic component provides a means to circumvent the problem of generically low annihilation cross sections of very heavy dark matter particles. At the same time, enhanced annihilation cross sections are necessary for indirect detection of very heavy dark matter components beyond 100 TeV. Non-thermally produced dark matter in this mass range could therefore contribute to the cosmic -ray and neutrino flux above 100 TeV, and massive Skyrmions provide an interesting framework for the discussion of these scenarios. Therefore a Higgs portal and a neutrino portal for very heavy Skyrmion dark matter are discussed. The Higgs portal model demonstrates a dark mediator bottleneck, where limitations on particle annihilation cross sections will prevent a signal from the potentially large soliton annihilation cross sections. This problem can be avoided in models where the dark mediator decays. This is illustrated by the neutrino portal for Skyrmion dark matter.
具有孤子成分的暗区提供了一种规避非常重的暗物质粒子通常湮灭截面较低这一问题的方法。与此同时，对于间接探测超过100 TeV的非常重的暗物质成分而言，增强的湮灭截面是必要的。因此，在这个质量范围内非热产生的暗物质可能会对超过100 TeV的宇宙射线和中微子通量有贡献，而大质量斯格明子为讨论这些情景提供了一个有趣的框架。因此，本文讨论了针对非常重的斯格明子暗物质的希格斯门户和中微子门户。希格斯门户模型展示了一个暗媒介瓶颈，其中对粒子湮灭截面的限制将阻止来自潜在大的孤子湮灭截面的信号。在暗媒介衰变的模型中可以避免这个问题。这通过斯格明子暗物质的中微子门户得以说明。
