地球尺度下的 displaced 顶点搜寻：KM3NeT 与 LHC 的结合
Earth-scale searches for displaced vertices: KM3NeT meets the LHC
浏览论文内容
中文总结 AI 辅助
该研究结合 KM3NeT 探测器与 LHC，探索 LHC 第 3 阶段及 HL-LHC 中产生的长寿命暗粒子，为 K 介子衰变到轻长寿命粒子提供强限制。
中文摘要 AI 辅助
在高能对撞机中，大量超出标准模型的弱相互作用粒子可产生于主探测器中，且伴随可忽略的缺失能量信号。这些粒子能飞行宏观距离并在远处的大体积探测器内衰变，留下可见信号。因此，我们或许无需新探测器即可搜寻极长寿命粒子。本文表明，LHC 第 3 运行阶段及高亮度 LHC（HL-LHC）中质子-质子碰撞的稀有介子衰变产生的长寿命暗粒子，可在 KM3NeT 探测器（如 ORCA）中留下可观测痕迹。若迄今 ORCA 未观测到异常信号，我们对 LHC 第 3 阶段的预计灵敏度将成为对 K 介子衰变为轻长寿命粒子的最强限制之一。
英文摘要
At high-energy colliders, enormous numbers of feebly interacting particles beyond the Standard Model can be produced with negligible missing-energy signatures in the main detectors. These particles can travel macroscopic distances and decay inside a distant large-volume detector, leaving visible signals. In this sense, we may not need new detectors to search for very long-lived particles. In this paper, we show that long-lived dark particles produced in rare meson decays in proton-proton collisions during LHC Run 3 and at the HL-LHC can leave observable imprints in KM3NeT detectors such as ORCA. If no anomalous signal has been observed in ORCA to date, our projected sensitivity for LHC Run 3 will correspond to one of the strongest limits on kaon decays into light long-lived particles.
发表机构
- Tokyo Metropolitan University（东京都立大学）
机构由 AI 辅助整理，请以论文原文为准。
