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arXiv 1601.02609hep-ph
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隐规范U（1）模型：暗生中微子与味暗物质的统一

Hidden Gauged U(1) Model: Unifying Scotogenic Neutrino and Flavor Dark Matter

Jiang-Hao Yu

备注：
11 pages, 9 figures, 2 tables; Version 2: references updated
发表信息：
Phys. Rev. D 93, 113007 (2016)
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摘要：

在暗生中微子和味暗物质模型中，暗区通过汤川门耦合与标准模型费米子通信。我们提出了一个经济的情况下，暗生中微子和调味剂共享相同的惰性希格斯偶极子和所有的收费下隐藏的规范$U(1)$对称性。暗扇区中的暗Z2对称性被认为是这个隐藏的$U(1)$对称性破缺的残余。特别是，我们研究了一个黑暗的$U(1)_D$（也是一个$U(1)_{B-L}$）模型，该模型统一了暗生中微子和顶味介质。在这个模型中，暗顶和暗中微子是标准模型费米子的伙伴，而暗物质可能是惰性的希格斯粒子或最轻的暗中微子。该模型在暗顶、惰性Higgs和Z'规范玻色子等方面具有丰富的对撞机特征.此外，与$U(1)_D$（以及$U(1)_{B-L}$）对称性破缺相关的标量可以解释ATLAS和CMS最近报道的750 GeV双光子过剩.

英文摘要：

In both scotogenic neutrino and flavor dark matter models, the dark sector communicates with the standard model fermions via Yukawa portal couplings. We propose an economic scenario that scotogenic neutrino and flavored mediator share the same inert Higgs doublet and all are charged under a hidden gauged $U(1)$ symmetry. The dark Z2 symmetry in dark sector is regarded as the remnant of this hidden $U(1)$ symmetry breaking. In particular, we investigate a dark $U(1)_D$ (and also a $U(1)_{B-L}$) model which unifies scotogenic neutrino and top-flavored mediator. In this model dark tops and dark neutrinos are the standard model fermion partners, and the dark matter could be inert Higgs or the lightest dark neutrino. This model has rich collider signatures on dark tops, inert Higgs and Z' gauge boson, etc. Moreover, the scalar associated to the $U(1)_D$ (and also $U(1)_{B-L}$) symmetry breaking could explain the 750 GeV diphoton excess reported by ATLAS and CMS recently.

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