Renormalizing Neutrino Masses and Flavor Mixing in Canonical Seesaw Models

by Prof. Shun Zhou（周顺） (Institute of High Energy Physics (IHEP), Chinese Academy of Sciences)

Thursday 11 Jun 2026, 11:00 → 12:00 Asia/Shanghai

Tsung-Dao Lee Institute/N6F-N600 - Lecture Room (Tsung-Dao Lee Institute)

Abstract: 

The canonical seesaw model serves as the simplest extension of the standard model but naturally accounts for both tiny neutrino masses and cosmological matter-antimatter asymmetry. In this talk, we explain how the canonical seesaw model is renormalized in the on-shell scheme at the one-loop level and demonstrate that the renormalized lepton flavor mixing matrix can be made gauge-independent via proper modifications of the counter terms. These results provide us with a self-consistent framework to test the low-energy scale seesaw model in the coming era of precision measurements.

Biography: 

Shun Zhou got his PhD from Institute of High Energy Physics (IHEP), Chinese Academy of Sciences, in 2009, and then worked as a postdoctoral researcher at Max Planck Institute for Physics in Munich (Alexander von Humboldt Fellow) and KTH Royal Institute of Technology in Stockholm. Since 2014, he has been a faculty member of Theoretical Physics Division at IHEP. His main research interest revolves around fermion masses and flavor mixing, CP violation, origin of neutrino masses and baryon number asymmetry in the Universe.

Alternative online link: https://meeting.tencent.com/dm/CfjiHL5BOIaW

ID: 107536885