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arXiv 1907.11228hep-phastro-ph.COhep-th
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从自对偶规范/希格斯动力学研究暗物质

Dark Matter from self-dual gauge/Higgs dynamics

Dario Buttazzo, Luca Di Luzio, Giacomo Landini, Alessandro Strumia, Daniele Teresi

备注：
35 pages, 4 figures, 2 tables; compared to the published version, the discussion of the SU(N) model has been expanded taking into account the existence of extra stable states, C-odd glueballs
发表信息：
JHEP 1910 (2019) 067
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摘要：

我们表明，一个新的规范群与一个新的标量导致自动稳定的暗物质候选人。我们考虑希格斯相与受限相对偶的理论：已知SU（2）规范理论与标量偶态（如标准模型）服从这一非平凡特征。我们给出了一个一般的判据，证明了这种自对偶性对SU（N），SO（N），Sp（N）和G_2规范动力学在基本表象中具有标量场时都成立。由此产生的暗物质现象学具有非平凡的特征，这些特征是该组的特征，我们将逐一讨论。仅举几例，SU（N）有一个偶然守恒的暗重子数，SO（2N+1）由于特殊的宇称导致稳定的胶球，G_2导致类似于中性K介子的暗物质系统。宇宙学上的暗物质丰度通常在100 TeV左右的质量下重现：所有的约束都得到满足，较轻的暗胶球可以影响希格斯物理。这些理论获得了额外的兴趣和预测性，假设暗和弱尺度都是动态生成的。

英文摘要：

We show that a new gauge group with one new scalar leads to automatically stable Dark Matter candidates. We consider theories where the Higgs phase is dual to the confined phase: it is known that SU(2) gauge theories with a scalar doublet (like the Standard Model) obey this non-trivial feature. We provide a general criterion, showing that this self-duality holds for SU(N), SO(N), Sp(N) and G_2 gauge dynamics with a scalar field in the fundamental representation. The resulting Dark Matter phenomenology has non-trivial features that are characteristic of the group, and that we discuss case by case. Just to mention a few, SU(N) has an accidental conserved dark baryon number, SO(2N+1) leads to stable glue-balls thanks to a special parity, G_2 leads to a Dark Matter system analogous to neutral kaons. The cosmological Dark Matter abundance is often reproduced for masses around 100 TeV: all constraints are satisfied and lighter dark glue-balls can affect Higgs physics. These theories acquire additional interest and predictivity assuming that both the dark and weak scales are dynamically generated.

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