New constraints on Higgs-portal scalar dark matter
New constraints on Higgs-portal scalar dark matter
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希格斯波门标量暗物质的新限制
DOI：
10.1007/jhep12(2015)044
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发表时间：
2015
影响因子：
5.4
通讯作者：
Zheng Sibo
中科院分区：
文献类型：
--
作者：
Han Huayong;Zheng Sibo
通过考虑微扰、早期宇宙的弱真空稳定性、暗物质的直接探测和大型强子对撞机上的希格斯不可见衰变的约束，对最简单的希格斯-门户暗物质模型进行了全面的重新讨论。结果表明，共振质量区被完全排除，高质量区被约化成1.1TeV≤m S≤2.55TeV的窄窗口，如果进一步施加微扰，这个窗口略有减少到1.1TeV≤m S≤2.0TeV。XENON1T实验可以完全探测到这个高质量区域。
The simplest Higgs-portal dark matter model, in which a real scalar singlet is added to the standard model, has been comprehensively revisited, by taking into account the constraints from perturbativity, electroweak vacuum stability in the early Universe, dark matter direct detection, and Higgs invisible decay at the LHC. We show that the resonant mass region is totally excluded and the high mass region is reduced to a narrow window 1.1 TeV≤ m s≤ 2.55 TeV, which is slightly reduced to 1.1 TeV≤ m s≤ 2.0 TeV if the perturbativity is further imposed. This high mass region can be fully detected by the Xenon1T experiment.