This article is a pedagogical review of searches for long-lived particles at the LHC. It is primarily aimed at experimentalists and theorists seeking to initiate and/or deepen their research in this field. We cover the general theoretical motivation and some example models, the main experimental techniques employed in searches for long-lived particles, and some of the important subtleties involved in estimating signal efficiencies and background rates.

中文翻译：

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在大型强子对撞机中寻找长寿命粒子的指南

本文是对大型强子对撞机寻找长寿命粒子的教学回顾。它主要针对寻求启动和/或深化该领域研究的实验学家和理论家。我们涵盖了一般理论动机和一些示例模型、寻找长寿命粒子所采用的主要实验技术，以及估计信号效率和背景率所涉及的一些重要微妙之处。