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首页> 外文期刊>Physical review, D >New constraints on radiative seesaw models from IceCube and other neutrino detectors
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New constraints on radiative seesaw models from IceCube and other neutrino detectors

机译：冰区和其他中微子探测器辐射跷跷板模型的新约束

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摘要

Dark matter (DM) scattering and its subsequent capture in the Sun can boost the local relic density, leading to an enhanced neutrino flux from DM annihilations that is, in principle, detectable at neutrino telescopes. We calculate the event rates expected for a radiative seesaw model containing both scalar triplet and singlet-doublet fermion DM candidates. In the case of scalar DM, the absence of a spin dependent scattering on nuclei results in a low capture rate in the Sun, which is reflected in an event rate of less than one per year in the current IceCube configuration with 86 strings. For singlet-doublet fermion DM, there is a spin dependent scattering process next to the spin independent one, which significantly boosts the event rate and thus makes indirect detection competitive with respect to the direct detection limits imposed by pico-60. Because of a correlation between both scattering processes, the limits on the spin independent cross section set by xenon1t exclude also parts of the parameter space that can be probed at IceCube. Previously obtained limits by antares, IceCube, and super-kamiokande from the Sun and the Galactic Center are shown to be much weaker.
机译：暗物质（DM）散射及其随后的太阳捕获可以提高局部遗物密度，导致来自DM湮灭的增强的中微生物通量，原则上是在Neutrino望远镜处可检测到的。我们计算辐射跷跷板模型的预期的事件率，其中包含标量三联网和双链码头DM候选。在标量DM的情况下，在核上没有旋转依赖性散射导致太阳中的低捕获速率，其在当前ICecube配置中以86个字符串的当前ICecube配置中的每年较少的事件速率反映。对于单次双链FERMION DM，旋转依赖性散射过程旁边的旋转依赖性散射过程，其显着提高了事件率，从而使得对PICO-60施加的直接检测限制进行间接检测竞争。由于两个散射过程之间的相关性，Xenon1T设置的旋转独立横截面上的限制排除了可以在ICecube上探测的参数空间的部分。以前获得的Antares，Icecube和Super-Kamiokande从太阳和银河系中获得的限制显示得多较弱。

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