讲座主题：Searching for a long-lived pseudo-scalar at the LHC
专家姓名：朱睿
工作单位：中国科学院理论物理研究所
讲座时间：2025年03月25日03:00-06:30
讲座地点：化院北312
主办单位：99精品视频在线观看物理与电子信息学院
内容摘要：
In this talk we investigate the Higgs decay into a light long-lived pseudo-scalar plus a Z-boson and take the aligned two-Higgs-doublet model (2HDM) as an example. This light long-lived scalar, with the dominant decay to tau leptons, will fly over a distance from the production point and present a displaced vertex in an Inner Detector of a generally purposed experiment like ATLAS or CMS. In our study we focus on the LHC experiment and perform Monte Carlo simulations for the signal and backgrounds. We demonstrate some benchmark points for the aligned 2HDM and find the signal to be detectable when the luminosity is accumulated to 300 fb-1.
主讲人介绍：
朱睿，2017 年本科毕业于中国科学技术大学理科试验班。2021年至今于中国科学院理论物理研究所攻读博士学位，导师为杨金民研究员。主要研究方向包括：对撞机物理，超出标准模型的新物理，以及暗物质。
