论文标题
在强度边界时代，强烈相互交互的巨大粒子和深色光子
Strongly-interacting massive particle and dark photon in the era of intensity frontier
论文作者
论文摘要
强烈相互作用的巨大粒子（SIMP）是暗物质（DM）的有趣候选者，因为其自身交联横截面可以自然强，以解决小规模结构形成的天体物理问题。提出了一个简单的模型，通过假设单极凝结，其中复合SIMP来自“强烈相互作用” u（1）$ _ {\ rm d} $仪表理论。在原始模型中，DM遗物丰度由Wess-Zumino-witter术语确定由$ 3 \ to2 $ nihilation过程确定。在这封信中，我们讨论了DM遗物丰度也自然地通过半耗时过程来确定通过超收费量表玻色子和深色u（1）$ _ {\ rm d} $ d} $ gauge boson（dark Photon）之间的动力学混合。在不久的将来，可以通过LDMX风格的缺少动量实验来发现深色光子。
A strongly interacting massive particle (SIMP) is an interesting candidate for dark matter (DM) because its self-interaction cross section can be naturally strong enough to address the astrophysical problem of small-scale structure formation. A simple model was proposed by assuming a monopole condensation, where composite SIMP comes from a "strongly interacting" U(1)$_{\rm d}$ gauge theory. In the original model, the DM relic abundance is determined by the $3\to2$ annihilation process via the Wess-Zumino-Witten term. In this letter, we discuss that the DM relic abundance is naturally determined also by a semi-annihilation process via a kinetic mixing between the hypercharge gauge boson and the dark U(1)$_{\rm d}$ gauge boson (dark photon). The dark photon can be discovered by LDMX-style missing momentum experiments in the near future.
