论文标题

暗物质检测,标准模型参数和中间尺度超对称性

Dark Matter Detection, Standard Model Parameters, and Intermediate Scale Supersymmetry

论文作者

Dunsky, David, Hall, Lawrence J., Harigaya, Keisuke

论文摘要

Higgs四分之一的耦合在高能尺度上可以通过中等量表的超对称性来解释,其中超对称性在$(10^9 $ -10 $ -10 $ 10^{12})$ GEV中断裂。可以通过顶部夸克质量和强耦合常数的精确测量来缩小超对称断裂量表的可能范围。另一方面,核后坐力实验可以探测higgsino或sneutrino暗物质,最高为$ 10^{12} $ GEV。我们得出了暗物质质量与标准模型参数的精确测量之间的相关性,包括超对称阈值校正。暗物质质量是从上方界定的,这是顶部夸克质量和强耦合常数的函数。对于给定的暗物质质量,顶部的夸克质量和强耦合常数分别从上方和下方界定。我们还讨论了在通货膨胀后以物质为主导的时代的冻结或冷冻中观察到的暗物质丰度如何解释,而充气凝结物会因热效应而消散。

The vanishing of the Higgs quartic coupling at a high energy scale may be explained by Intermediate Scale Supersymmetry, where supersymmetry breaks at $(10^9$-$10^{12})$ GeV. The possible range of supersymmetry breaking scales can be narrowed down by precise measurements of the top quark mass and the strong coupling constant. On the other hand, nuclear recoil experiments can probe Higgsino or sneutrino dark matter up to a mass of $10^{12}$ GeV. We derive the correlation between the dark matter mass and precision measurements of standard model parameters, including supersymmetric threshold corrections. The dark matter mass is bounded from above as a function of the top quark mass and the strong coupling constant. The top quark mass and the strong coupling constant are bounded from above and below respectively for a given dark matter mass. We also discuss how the observed dark matter abundance can be explained by freeze-out or freeze-in during a matter-dominated era after inflation, with the inflaton condensate being dissipated by thermal effects.

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