$ν$ MSM无菌中微子暗物质模型的eXTP前景
eXTP perspectives for the $ν$MSM sterile neutrino dark matter model
摘要：
我们讨论了潜在的eXTP X射线望远镜，特别是它的光谱聚焦阵列（SFA），大面积探测器（LAD）和宽视场监视器（WFM）的信号从千电子伏级衰变暗物质的检测。我们表明，eXTP的灵敏度是足够的，以改善现有的限制中微子的混合角的最小扩展的标准模型（$ν$ MSM）的一个因素5-10内的暗物质质量范围2-50千电子伏，假设1%的系统不确定性。我们断言，eXTP将能够探测以前无法访问的$ν$ MSM参数范围，并作为雅典娜任务在衰减暗物质搜索的先驱。
英文摘要：
We discuss the potential of the eXTP X-ray telescope, in particular its Spectroscopic Focusing Array (SFA), Large Area Detector (LAD) and Wide Field Monitor (WFM) for the detection of a signal from keV-scale decaying dark matter. We show that the sensitivity of the eXTP is sufficient to improve existing constraints on the mixing angle of the neutrino Minimal extension of the Standard Model ($ν$MSM) by a factor of 5-10 within the dark matter mass range 2-50 keV, assuming 1% level of systematic uncertainty. We assert that the eXTP will be able to probe previously inaccessible range of $ν$MSM parameters and serve as a precursor for the Athena mission in decaying dark matter searches.
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