报告题目：Multi dark photon signatures at collider experiments
报告人：Prof.Takaaki Nomura (Sichuan University, 四川大学)
报告时间：2025年4月25日 下午14：30-15:30
报告地点：理8栋118报告厅
报告摘要：
In this talk, we discuss multi dark photon signatures at collider experiments such as LHC and future Z-factories realized by CEPC and FCCee. Dark photon appears with a new scalar boson from spontaneously broken hidden U(1) gauge symmetry. Typically mass scales of dark photon and new scalar are similar size. Thus it is promising to consider signals at collider experiments taking both dark photon and scalar into account. Focusing on light dark photon/scalar scenario, we discuss lepton jets signature at the LHC and a triple dark photon signal at Z-factory. We find these signals are useful to explore kinetic mixing and scalar mixing parameters.
报告人简介：
I got Ph.D at Saitama University in Japan and working in phenomenology of high energy physics. My research career is as follows.
2010.4-2013.7: Post-Doctoral Fellow (National Central University - Department of Physics, Taiwan, China).
2013.8-2015.7: Post-Doctoral Fellow (National Cheng-Kung University - Department of Physics, Taiwan, China).
2015.8-2017.7: Research Fellow (Korea Institute for Advanced Study (KIAS) - School of Physics, Republic of Korea).
2017.8-2020.7: Assistant professor (Korea Institute for Advanced Study (KIAS) - School of Physics, Republic of Korea).
2020.12-Current: Researcher (Sichuan University, China).