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三元名家論壇:Phenomenological studies on searching for long-lived particles with displaced vertices and jets at the LHC
作者:     供圖:     供圖:     日期:2025-05-08     來源:    

講座主題:Phenomenological studies on searching for long-lived particles with displaced vertices and jets at the LHC

專家姓名:王澤人(Zeren Simon Wang)

工作單位:合肥工業大學

講座時間:2025年05月14日 10:30-12:00

講座地點:萊山區祥隆中心A座4樓

主辦單位:煙臺大學物理與電子信息學院

內容摘要:

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.

主講人介紹:

Zeren Simon Wang is an associate researcher at the School of Physics, Hefei University of Technology. Previously he worked as a postdoctoral researcher at the Asia Pacific Center for Theoretical Physics and at the Department of Physics, Taiwan Tsing Hua University. He obtained Ph.D. at the University of Bonn. He has published more than 40 research papers in journals including JHEP, PRD, and EPJC, and served as a referee for these and other journals.

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