We propose a novel mechanism in composite models that provides self-interacting dark matter along with the Higgs itself as composite particles, alleviating the Standard Model naturalness problem and explaining small-scale discrepancies such as the core-cusp and “too big to fail” problems. These dark matter candidates are stable due to global $\text{U}(1)$ symmetries of the composite dynamics and their strong self-interactions are created by the novel mechanism based on top-quark partial compositeness. The relic density of the dark matter candidates is particle anti-particle symmetric and due to thermal freeze-out. We implement this mechanism in a four-dimensional gauge theory with a minimal number of fermions charged under a new confining gauge group $G_{\mathrm{HC}}$.

我们在复合模型中提出了一种新机制，它提供自相互作用的暗物质以及希格斯粒子本身作为复合粒子，缓解标准模型的自然性问题并解释小尺度差异，如核心尖点和“太大而不能倒”问题. 这些暗物质候选者是稳定的，因为全球$\text{ü}(1)$复合动力学的对称性及其强自相互作用是由基于顶夸克部分复合性的新机制创建的。暗物质候选者的遗迹密度是粒子反粒子对称的，并且由于热冻结。我们在一个四维规范理论中实现了这种机制，在一个新的约束规范组下充电的费米子数量最少$G_{\mathrm{HC}}$.