论文标题
典型暗物质的半义
Semi-Annihilation of Fermionic Dark Matter
论文作者
论文摘要
在各种直接和间接检测实验中，从暗物质（DM）歼灭发出的事件的持续不观察到质疑确定弱相互作用的巨大粒子的遗物密度的机制。但是，如果遗物密度主要取决于半耗电过程，而不是通常的歼灭，则可以改善这种张力。在这里，我们研究了一个Z3对称有效场理论，该理论结合了半意式的fermionic暗物质，该暗物质将半义为右手中微子（RHN）。在获得正确的DM遗物的同时，还对RHN的动力学及其后期的影响也进行了审查。最后，从矮小的球形星系（Fermi-lat）的方向上得出了半耗时横截面的间接检测边界，包括H.E.S.S.和CTA检测器。
The continued non-observation of events emanating from dark matter (DM) annihilations in various direct and indirect detection experiments calls into question the mechanism for determining the relic density of a weakly interacting massive particle. However, if the relic density is determined primarily by a semi-annihilation process, as opposed to the usual annihilation, this tension can be ameliorated. Here, we investigate a Z3 symmetric effective field theory incorporating a fermionic dark matter that semi-annihilates to right-handed neutrinos (RHN). The dynamics of the RHN and the impact of its late decays are also scrutinised while obtaining the correct DM relic. Finally, indirect detection bounds on the semi-annihilation cross-sections are drawn from the gamma-ray observations in the direction of Dwarf Spheroidal Galaxies (Fermi-LAT), and including the projections obtained for the H.E.S.S. and the CTA detectors.
