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arXiv 1509.01587hep-phastro-ph.HE
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类矢量WIMP有效相互作用的全局约束

Global constraints on vector-like WIMP effective interactions

Mattias Blennow, Pilar Coloma, Enrique Fernandez-Martinez, Pedro A. N. Machado, Bryan Zaldivar

摘要:

在这项工作中,我们结合了来自遗迹丰度,直接检测,宇宙微波背景,正电子分数,伽马射线和对撞机的信息,以探索现有的约束暗物质和标准模型成分之间的耦合时,没有假设的基础模型或相关性。为了明确,我们包括独立的矢量类有效相互作用的每个标准模型费米子。我们的研究结果表明,低暗物质质量低于20 GeV的不利在$3 σ$水平相对于更高的质量,由于遗迹丰度的要求和上限之间的紧张关系的暗物质耦合。此外,大的耦合通常仅在避免与直接检测实验中使用的核的有效耦合的组合中被允许。

英文摘要:

In this work we combine information from relic abundance, direct detection, cosmic microwave background, positron fraction, gamma rays, and colliders to explore the existing constraints on couplings between Dark Matter and Standard Model constituents when no underlying model or correlation is assumed. For definiteness, we include independent vector-like effective interactions for each Standard Model fermion. Our results show that low Dark Matter masses below 20 GeV are disfavoured at the $3 σ$ level with respect to higher masses, due to the tension between the relic abundance requirement and upper constraints on the Dark Matter couplings. Furthermore, large couplings are typically only allowed in combinations which avoid effective couplings to the nuclei used in direct detection experiments.

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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