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arXiv 0802.3847hep-phastro-ph
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最小超对称标准模型的门状扩展中的Z_2-Singlino暗物质

Z_2-Singlino Dark Matter in a Portal-Like Extension of the Minimal Supersymmetric Standard Model

John McDonald, Narendra Sahu

摘要:

我们提出了一个Z_2稳定的单斜晶系(\bar χ)作为超对称标准模型的扩展和R宇称违反版本中的暗物质候选者。\bar χ通过一个重信使场S与可见物质相互作用,这导致了希格斯门相互作用的超对称版本。如果信使质量满足M_S \lsim 10^{4} GeV,那么\bar χ的残余丰度可以解释冷暗物质。我们的模型可以实现在许多现实的超对称模型,如NMSSM和nMSSM。

英文摘要:

We propose a Z_2-stabilised singlino (\barχ) as a dark matter candidate in extended and R-parity violating versions of the supersymmetric standard model. \barχ interacts with visible matter via a heavy messenger field S, which results in a supersymmetric version of the Higgs portal interaction. The relic abundance of \barχ can account for cold dark matter if the messenger mass satisfies M_S \lsim 10^{4} GeV. Our model can be implemented in many realistic supersymmetric models such as the NMSSM and nMSSM.

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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