论文标题

光与黑暗:通过有效的操作员始终将暗物质与光子耦合

Light and Darkness: consistently coupling dark matter to photons via effective operators

论文作者

Arina, Chiara, Cheek, Andrew, Mimasu, Ken, Pagani, Luca

论文摘要

我们修改了通过Dimension -5和-6有效的操作员与光子相互作用的费米克暗物质的处理。我们展示了有效运营商超出其有效性的应用如何引入与当前实验搜索相关的非物理,违反规格的效果。通过将暗物质与超电量规场耦合来恢复量规的不变性具有对高于Electroweak量表上方和下方的参数空间的影响。我们回顾了LHC以及直接和间接检测实验的这些超充电形式因素的现象学。我们强调了电磁和超负荷描述导致有关可行参数空间和各种探针相对灵敏度的结论截然不同。其中包括对向量玻色子融合的急剧削弱与LHC的单射流搜索相比,间接搜索可能导致比直接检测更大的暗物质质量的直接检测的不正确印象。我们发现尺寸5运算符受直接检测范围的强烈限制,而对于尺寸6运算符,LHC单射流搜索具有竞争力或比我们考虑的其他探针更好。

We revise the treatment of fermionic dark matter interacting with photons via dimension-5 and -6 effective operators. We show how the application of the effective operators beyond their validity introduces unphysical, gauge violating effects that are relevant for current experimental searches. Restoring gauge invariance by coupling dark matter to the hypercharge gauge field has implications for the parameter space above and below the electroweak scale. We review the phenomenology of these hypercharge form factors at the LHC as well as for direct and indirect detection experiments. We highlight where the electromagnetic and hypercharge descriptions lead to wildly different conclusions about the viable parameter space and the relative sensitivity of various probes. These include a drastic weakening of vector bosons fusion versus mono-jet searches at the LHC, and the incorrect impression that indirect searches could lead to better constraints than direct detection for larger dark matter masses. We find that the dimension-5 operators are strongly constrained by direct detection bounds, while for dimension-6 operators LHC mono-jet searches are competitive or performing better than the other probes we consider.

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