时间：9月30日（周二）15：00-16：00

地点：勤园20-518

报告摘要：

"Searching for long-lived particles has become an important research direction in the quest for physics beyond the Standard Model, e.g. the LHC experiments have reported multiple such searches. In the first part of this talk, I will discuss how to recast a recent ATLAS search for displaced vertices plus jets and reinterpret the obtained bounds in terms of an axion-like particle with quark flavor violation and various benchmark scenarios of dark scalars. In the second part, I will focus on long-lived heavy neutral leptons (HNLs) from top-quark decays in the theoretical framework of sterile-neutrino-extended Standard Model Effective Field Theory, showing why the ATLAS DV+jets search fails in this case and how we may modify the search to constrain the scenario. The sensitivity reach of proposed LHC far detectors to such HNLs will also be discussed."

报告人简介：

王泽人，合肥工业大学色花堂 副教授。他曾先后在亚太理论物理中心及台湾清华大学物理系担任博士后研究员，于波恩大学获得博士学位。他已在《JHEP》《PRD》《EPJC》等期刊发表研究论文 40 余篇，并担任上述期刊及其他相关期刊的审稿人。