论文标题
半吹拂的暗物质与马龙相结合
Semi-annihilating dark matter coupled with Majorons
论文作者
论文摘要
暗物质的热生产机制具有吸引力，并且通过预测性吸引了良好的动力。这种类型的暗物质候选者的代表是规范，弱相互作用的巨大颗粒。一种替代方法是半义暗物质，该暗物质表现出与前一个示例不同的现象学方面。在这项研究中，我们构建了一个暗物质半义的模型，将基于全球$ u（1）_ {b-l} $对称性基于全球$ u（1）_ {B-l} $对称性的Maparon构建，并证明了半耗资会引起暗物质的核心形成，这可以减轻所谓的小规模问题。另外，中微子的盒形光谱是由随后的Majoron腐烂产生的。这可能是模型中暗物质的独特签名。我们找到一个参数空间，可以通过未来的大批量中微子检测器超级kamiokande检测产生的中微子。我们还通过强烈的自我相互作用的暗物质将暗物质情景与Halo Core形成的情况进行了比较。
The thermal production mechanism of dark matter is attractive and well-motivated by predictivity. A representative of this type of dark matter candidate is the canonical, weakly interacting massive particles. An alternative is semi-annihilating dark matter, which exhibits different phenomenological aspects from the former example. In this study, we constructed a model of dark matter semi-annihilating into a pair of anti-dark matter and a Majoron based on a global $U(1)_{B-L}$ symmetry, and show that semi-annihilation induces the core formation of dark matter halos, which can alleviate the so-called small-scale problems. In addition, the box-shaped spectrum of neutrinos was produced by the subsequent decay of the Majoron. This can be a distinctive signature of the dark matter in the model. We find a parameter space where the produced neutrinos can be detected by the future large-volume neutrino detector Hyper-Kamiokande. We also compared the dark matter scenario with the case of halo core formation by the strongly self-interacting dark matter.
