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arXiv 1801.02707hep-ph
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暗物质与额外带电轻子相互作用的表征

Characterising Dark Matter Interacting with Extra Charged Leptons

D. Barducci, A. Deandrea, S. Moretti, L. Panizzi, H. Prager

摘要:

在一个简化的亲轻子暗物质(DM)的情况下,介质是携带轻子量子数的新带电费米子,DM候选者是标量或矢量,分析了不同边界的互补性.在这个框架中,额外轻子和DM在$\mathbb Z_2$对称下是奇数的,因此轻子介体只能与DM态和各种味道的标准模型(SM)轻子相互作用。我们表明,有可能重新定义DM自旋(标量或矢量),以及介质的性质,通过宇宙学,味道和对撞机数据的综合分析。我们提出了一个明确的数值分析的可行的参数空间的一组基准点,我们的情况。

英文摘要:

In the context of a simplified leptophilic Dark Matter (DM) scenario where the mediator is a new charged fermion carrying leptonic quantum number and the DM candidate is either scalar or vector, the complementarity of different bounds is analysed. In this framework, the extra lepton and DM are odd under a $\mathbb Z_2$ symmetry, hence the leptonic mediator can only interact with the DM state and Standard Model (SM) leptons of various flavours. We show that there is the possibility to characterise the DM spin (scalar or vector), as well as the nature of the mediator, through a combined analysis of cosmological, flavour and collider data. We present an explicit numerical analysis for a set of benchmarks points of the viable parameter space of our scenario.

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