Speaker：Prof. Chuan-Ren Chen (NTNU) 
Title：Phenomenology of millicharge particle and axion-like particle in the dark sector
Time：2024/05/13 (Mon.) 12:30
Place：R517, New Physics Building, NTU

Abstract：
If the dark sector exists and communicates with Standard Model through the U(1) mixing, it is possible that electromagnetism would have influence on matter fields in the dark sector, so-called millicharge particles (mCPs). Recently it has been shown that the mCPs could be slowed down and captured by the earth. As a result, the number density of accumulated mCPs underground is enhanced as compared to that in our solar system. We propose to use the Mach-Zehnder laser interferometer to detect earth-bounded mCPs. Furthermore, if the axion-like particle exists and lives in the dark sector, it would cause significant impacts on the constraints of dark photon searches.