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arXiv 1107.2666hep-phastro-ph.COhep-th
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重子的暗力

A dark force for baryons

Michael L. Graesser, Ian M. Shoemaker, Luca Vecchi

摘要:

我们认为重子物质和暗物质之间存在着一种基本的联系。这是由这两种类型的物质的稳定性以及它们现在密度的相似性引起的。在重子数被提升为自发破缺的局域规范对称性的模型中,重子和暗物质的统一起源是很自然的。这是说明在一个特定的类超对称模型使用阿弗莱克-Dine机制。在这些场景中,暗物质候选者在重子规范对称性下带电,并且必须具有GeV量级的质量才能给出正确的现今丰度。我们讨论了来自B工厂、LEP、Tevatron单喷流搜索和暗物质直接探测实验的限制。重子暗力被证明是一致的介质的所有数据作为光的GeV尺度。

英文摘要:

We suggest the existence of a fundamental connection between baryonic and dark matter. This is motivated by both the stability of these two types of matter as well as the observed similarity of their present-day densities. A unified genesis of baryonic and dark matter is natural in models in which the baryon number is promoted to a spontaneously broken local gauge symmetry. This is illustrated in a specific class of SUSY models using the Affleck-Dine mechanism. The dark matter candidate in these scenarios is charged under the baryon gauge symmetry and must have a mass around the GeV scale to give the correct present-day abundance. We discuss constraints from B-factories, LEP, mono-jet searches at the Tevatron, and dark matter direct detection experiments. A baryonic dark force is shown to be consistent with all data for mediators as light as the GeV 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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