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arXiv 2402.04176hep-phhep-lat
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复合暗物质实表示的低能有效理论

Low energy effective theories of composite dark matter with real representations

Joachim Pomper, Suchita Kulkarni

AI总结:

本文针对实表示复合暗物质,构建含Wess-Zumino-Witten项的低能有效理论,并研究味单态对暗物质现象学的影响,结果具有普适性。

摘要:

我们考虑由规范群实表示中变换的狄拉克费米子产生的赝南部-戈德斯通玻色子作为暗物质候选者。我们研究了两个狄拉克费米子的特殊情况,并通过矢量媒介子将所得暗区与标准模型耦合。在此构造中,我们发展了一致的低能有效理论,特别关注于具有拓扑非平凡陪集空间的Wess-Zumino-Witten项。我们还包含了更重的自旋-0味单态和自旋-1矢量介子多重态,后者使用隐局域对称拉格朗日量描述。尽管我们专注于两味特殊情况,我们的结果是通用的,可应用于更广泛的具有实表示的理论。我们应用此形式体系并评论味单态对暗物质现象学的影响。最后,我们还评论了我们的形式体系向更高表示推广的可能性,并提供了离散对称性破缺的潜在后果。

英文摘要:

We consider pseudo Nambu-Goldstone bosons arising from Dirac fermions transforming in real representations of a confining gauge group as dark matter candidates. We consider a special case of two Dirac fermions and couple the resulting dark sector to the Standard Model using a vector mediator. Within this construction, we develop a consistent low energy effective theory, with special attention to Wess-Zumino-Witten term given the topologically non-trivial coset space. We furthermore include the heavier spin-0 flavour singlet state and the spin-1 vector meson multiplet, by using the Hidden Local Symmetry Lagrangian for the latter. Although we concentrate on special case of two flavours, our results are generic and can be applied to a wider variety of theories featuring real representations. We apply our formalism and comment on the effect of the flavour singlet for dark matter phenomenology. Finally, we also comment on generalisation of our formalism for higher representations and provide potential consequences of discrete symmetry breaking.

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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