arXivDaily arXiv每日学术速递 周一至周五更新
arXiv 2008.10607hep-phastro-ph.CO
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强相互作用手征动力学中的复合暗物质

Composite Dark Matter from Strongly-Interacting Chiral Dynamics

Roberto Contino, Alessandro Podo, Filippo Revello

摘要:

研究了一类具有偶然稳定性的伪南武-戈德斯通玻色子充当暗物质(DM)的手征规范理论。规范群包含一个矢量状的深色因子,限制在能量大于电弱标度,和一个${\rm U}(1)_D$因子,保持弱耦合,是自发破缺。所有新的尺度都是动态生成的,包括DM质量,IR动力学是完全可计算的。我们分析了这种极小模型与暗费米子变换为非平凡的矢量表示的标准模型(SM)规范群。在现实的模型中,DM候选者是SM单线态,并伴随着可以在高能对撞机上发现的带电伙伴。因此,最低层新态的现象学特征是天体物理观测和实验室实验的相关预测。

英文摘要:

A class of chiral gauge theories is studied with accidentally-stable pseudo Nambu-Goldstone bosons playing the role of dark matter (DM). The gauge group contains a vector-like dark color factor that confines at energies larger than the electroweak scale, and a ${\rm U}(1)_D$ factor that remains weakly coupled and is spontaneously broken. All new scales are generated dynamically, including the DM mass, and the IR dynamics is fully calculable. We analyze minimal models of this kind with dark fermions transforming as non-trivial vector-like representations of the Standard Model (SM) gauge group. In realistic models, the DM candidate is a SM singlet and comes along with charged partners that can be discovered at high-energy colliders. The phenomenology of the lowest-lying new states is thus characterized by correlated predictions for astrophysical observations and laboratory 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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