论文标题
在有效的互动框架中搜索腐烂的腐烂的暗物质：$γ$ ray和无线电观察的比较
Search for decaying heavy dark matter in an effective interaction framework: a comparison of $γ$-ray and radio observations
论文作者
论文摘要
我们调查并比较观察腐烂的暗物质（DM）$γ$ ray和射电望远镜的可能性。该研究的特殊强调是在质量在反式TEV范围内的标量重DM粒子上。 DM衰减与现有寿命的现有限制相一致，被认为是由较高维度有效的操作员驱动的。我们认为，标量暗粒子的两体衰变和一个具有三体衰变的黑暗扇区，产生了两个标准模型颗粒。发现各向同性$γ$ ray背景的Fermi-LAT数据迄今为止提供了最佳约束，尽管CTA望远镜在直接生产一个或两个光子的衰减中可能更有效。在所有情况下，在即将到来的SKA射电望远镜中，可以使用几百小时观察的有效操作员进行更深入的探针，这是使用来自矮脑膜内的衰减级联反应中产生的能量电子的无线电同步磁通量。最后，我们估计SKA如何限制银河磁场跨越的参数空间和扩散系数，如果观察结果与$γ$ -Ray的数据一致，则实际上实际上发生了。
We investigate and compare the possibilities of observing decaying dark matter (DM) in $γ$-ray and radio telescopes. The special emphasise of the study is on a scalar heavy DM particle with mass in the trans-TeV range. DM decays, consistent with existing limits on the life time, are assumed to be driven by higher dimensional effective operators. We consider both two-body decays of a scalar dark particle and a dark sector having three-body decays, producing two standard model particles. It is found that the Fermi-LAT data on isotropic $γ$-ray background provides the best constraints so far, although the CTA telescope may be more effective for decays where one or two photons are directly produced. In all cases, deeper probes of the effective operators are possible in the upcoming SKA radio telescope with a few hundred hours of observation, using the radio synchrotron flux coming from energetic electrons produced in the decay cascades within dwarf spheroidal galaxies. Finally, we estimate how the SKA can constrain the parameter space spanned by the galactic magnetic field and the diffusion coefficient, if observations consistent with $γ$-ray data actually take place.
