arXivDaily arXiv每日学术速递 周一至周五更新
arXiv 2004.05354hep-phastro-ph.CO
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超对称发条轴子模型与轴子暗物质

Supersymmetric Clockwork Axion Model and Axino Dark Matter

Kyu Jung Bae, Sang Hui Im

摘要:

研究了发条轴子超对称化的意义。超对称性确保了萨克斯子和axino具有与发条轴子相同的耦合层次模式。如果我们假设超对称性破缺在发条位置上是普遍的,那么耦合结构就被保留了下来,而萨克斯子和轴子的质量排序可以根据超对称性破缺的尺度而有所不同。当大质量的轴子和轴子迅速衰变时,最轻的轴子可以是稳定的,因此是暗物质的候选者。热产生的轴子暗物质的残余丰度主要取决于正常质量排序中较重轴子的衰变。与传统的axino方案相比,这以指数方式增强了热产额。讨论了一些宇宙学问题。

英文摘要:

Implications of supersymmetrizing the clockwork axions are studied. Supersymmetry ensures that the saxions and axinos have the same pattern of the coupling hierarchy as the clockwork axions. If we assume supersymmetry breaking is universal over the clockwork sites, the coupling structure is preserved, while the mass orderings of the saxions and axinos can differ depending on the supersymmetry breaking scale. While the massive saxions and axions quickly decay, the lightest axino can be stable and thus a dark matter candidate. The relic abundance of the axino dark matter from thermal production is mostly determined by decays of the heavier axinos in the normal mass ordering. This exponentially enhances the thermal yield compared to the conventional axino scenarios. Some cosmological issues are discussed.

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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