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arXiv 1102.5644hep-phastro-ph.CO
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$d=5$算符与振荡非对称超中微子暗物质的最大$U(1)_L$逆跷跷板

The Maximal $U(1)_L$ Inverse Seesaw from $d=5$ Operator and Oscillating Asymmetric Sneutrino Dark Matter

Zhaofeng Kang, Jinmian Li, Tianjun Li, Tao Liu, Jin Min Yang

摘要:

最大$U(1)_L$超对称反跷跷板机制($L$ SIS)提供了一种将非对称暗物质(ADM)与中微子物理联系起来的自然方法。本文指出,如果在次极小超对称标准模型(NMSSM)中通过五维算符$(N)^2S^2/M_*$动态实现逆跷跷板机制,则$L$ SIS是一个自然的结果,其中$S$是NMSSM单态发展TeV尺度VEV的结果;由于基本尺度$M_*$的抑制,它略微违反轻子数,从而最大限度地保持了$U(1)_L$.由此产生的超中微子是一个可区分的ADM候选者,振荡并倾向于具有弱标度质量。由于单重态的存在,这种重ADM的湮灭截面相当大。

英文摘要:

The maximal $U(1)_L$ supersymmetric inverse seesaw mechanism (M$L$SIS) provides a natural way to relate asymmetric dark matter (ADM) with neutrino physics. In this paper we point out that, M$L$SIS is a natural outcome if one dynamically realizes the inverse seesaw mechanism in the next-to minimal supersymmetric standard model (NMSSM) via the dimension-five operator $(N)^2S^2/M_*$, with $S$ the NMSSM singlet developing TeV scale VEV; it slightly violates lepton number due to the suppression by the fundamental scale $M_*$, thus preserving $U(1)_L$ maximally. The resulting sneutrino is a distinguishable ADM candidate, oscillating and favored to have weak scale mass. A fairly large annihilating cross section of such a heavy ADM is available due to the presence of singlet.

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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