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arXiv 1002.2525hep-ph
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最小规范$U(1)_{B-L}$模型中的Higgs门暗物质

Higgs portal dark matter in the minimal gauged $U(1)_{B-L}$ model

Nobuchika Okada, Osamu Seto

摘要:

在最小规范$U(1)_{B-L}$模型的背景下,通过引入一个额外的宇称来保证暗物质粒子的稳定性,提出了一个右手中微子暗物质的方案.这种右手中微子的湮灭主要通过s通道希格斯玻色子交换发生,因此该模型可称为Higgs门暗物质模型。我们证明了右手中微子暗物质在Higgs共振的帮助下的热遗迹丰度可以与观测到的暗物质丰度相匹配。此外,我们还估计了与核子的碰撞截面,并表明下一代直接暗物质搜索实验可以探索这个模型。

英文摘要:

We propose a scenario of the right-handed neutrino dark matter in the context of the minimal gauged $U(1)_{B-L}$ model by introducing an additional parity which ensures the stability of dark matter particle. The annihilation of this right-handed neutrino takes place dominantly through the s-channel Higgs boson exchange, so that this model can be called Higgs portal dark matter model. We show that the thermal relic abundance of the right-handed neutrino dark matter with help of Higgs resonance can match the observed dark matter abundance. In addition we estimate the cross section with nucleon and show that the next generation direct dark matter search experiments can explore this model.

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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