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arXiv 0912.3003hep-thastro-ph.COgr-qchep-ph
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重新评价暗物质的宇宙学起源

Reevaluating the Cosmological Origin of Dark Matter

Scott Watson

摘要:

暗物质作为热遗迹的起源提供了一种令人信服的方式,即早期宇宙最初由暗物质构成。与简单的热生产相比,其他解释通常显得很奇怪。然而,最近的观察和理论进展表明,可能有必要更加严格。这一点很重要,因为正在进行的探索暗物质微观特性的研究通常依赖于暗物质作为单一、独特的热遗迹的假设。在一般的基础上,我会认为,非热产生的暗物质似乎是一个强大的预测物理学超越了标准模型。然而,如果这样的模型是导致现实的现象学,他们必须坐在一个限制性的理论框架。正如我们将展示的,由于这些限制,可行的模型将导致具体和可检验的预测。虽然还有许多挑战,但这种模型的非热成分可能提供一种新的方法来测试弦论,这些理论是为了提供接近电弱尺度的现实粒子物理学而制定的。

英文摘要:

The origin of dark matter as a thermal relic offers a compelling way in which the early universe was initially populated by dark matter. Alternative explanations typically appear exotic compared to the simplicity of thermal production. However, recent observations and progress from theory suggest that it may be necessary to be more critical. This is important because ongoing searches probing the microscopic properties of dark matter typically rely on the assumption of dark matter as a single, unique, thermal relic. On general grounds I will argue that non-thermal production of dark matter seems to be a robust prediction of physics beyond the standard model. However, if such models are to lead to realistic phenomenology, they must sit in a restrictive theoretical framework. As we will show, as a consequence of such restrictions, viable models will result in concrete and testable predictions. Although many challenges remain, the non-thermal component of such models may offer a new way to test string theories that are formulated to provide realistic particle physics near the electroweak scale.

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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