We will have the 10th public ExU Online Colloquium Public ExU Colloquium on February 6 (Fri.) 11:30 (JST). The speakers are Prof. Stefan Hollands (University of Leipzig). For details, please refer to the poster. If you have not registered yet, please register at our online event website at least three days prior to the colloquium. (It is not necessary to register again if you have done it already.) This event is co-organized by Nagoya University Institute for Advanced Research (IAR) and Kobayashi-Maskawa Institute for the Origin of Particles and the Universe (KMI).