论文标题
衰减旋转3/2暗物质的情况
The case for decaying spin-3/2 dark matter
论文作者
论文摘要
我们将一个无菌中微子扇形与Spin-3/2粒子息息相关，并表明，随着Planck的减少耦合，我们可以获得足够长的寿命，使Spin-3/2粒子成为良好的暗物质候选者。我们表明，通过标准模型颗粒的散射在通货膨胀加热期间可以产生这种暗物质候选者。通过普朗克确定的遗物丰度和其他实验测量值是针对加热温度的合理值$ t _ {\ rm rh} \ gtrsim 10^{8} $ gev的合理值。我们考虑到扩展标准模型的两个可能的规格不变耦合。我们发现可能有很多质量尊重其衰减率的实验极限。我们预计以单色光子形式的吸烟枪信号具有可能的单色中微子，可以在不久的将来在ICECUBE和其他间接检测实验中探测。
We couple a sterile neutrino sector to a spin-3/2 particle and show that with a Planck reduced coupling, we can obtain a sufficiently long lifetime making the spin-3/2 particle a good dark matter candidate. We show that this dark matter candidate can be produced during inflationary reheating through the scattering of Standard Model particles. The relic abundance as determined by Planck and other experimental measurements is attained for reasonable values of the reheating temperature $T_{\rm RH} \gtrsim 10^{8}$ GeV. We consider two possible gauge invariant couplings to the extended Standard Model. We find a large range of masses are possible which respect the experimental limits on its decay rate. We expect smoking-gun signals in the form of a monochromatic photon with a possible monochromatic neutrino, which can be probed in the near future in IceCube and other indirect detection experiments.
