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arXiv 2110.06985hep-ph
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电弱对称性破缺与WIMP-FIMP暗物质

Electroweak Symmetry Breaking and WIMP-FIMP Dark Matter

Subhaditya Bhattacharya, Sreemanti Chakraborti, Dipankar Pradhan

摘要:

电弱对称性破缺(EWSB)被认为会产生我们所生活的巨大宇宙。然而,它也可能提供了一个重要的边界冻结或冻结的暗物质(DM)连接到标准模型通过希格斯门的过程中,有助于DM遗迹不同的边界。我们探索这样的可能性,在一个两个组件DM框架,其中一个大规模的$U(1)_X$规范玻色子DM冻结和标量单DM冻结,这继承了EWSB的影响,在相关的方式为这两种情况下。在不同的可能性中,我们研究了两种示例情况;第一种情况是当一种DM组分冻入而另一种组分从热浴中冻出时,这两种情况都必然是$before$ EWSB;第二种情况是当冻入和冻出都发生时,这两种情况都是$after$ EWSB。我们发现这两种情况下,在解决遗物密度和最近最直接的搜索约束从XENON 1 T,其中一些可以借用模型独立的方式后,在可用的参数空间的模型中的一些突出的独特功能。

英文摘要:

Electroweak Symmetry Breaking (EWSB) is known to produce a massive universe that we live in. However, it may also provide an important boundary for freeze-in or freeze-out of dark matter (DM) connected to Standard Model via Higgs portal as processes contributing to DM relic differ across the boundary. We explore such possibilities in a two-component DM framework, where a massive $U(1)_X$ gauge boson DM freezes-in and a scalar singlet DM freezes-out, that inherits the effect of EWSB for both the cases in a correlated way. Amongst different possibilities, we study two sample cases; first when one DM component freezes in and the other freezes out from thermal bath both necessarily $before$ EWSB and the second, when both freeze-in and freeze-out occur $after$ EWSB. We find some prominent distinctive features in the available parameter space of the model for these two cases, after addressing relic density and the recent most direct search constraints from XENON1T, some of which can be borrowed in a model independent way.

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