Speaker

Yu-Qing LOU

Time

2026.03.11 16:00-17:30

Abstract

Physicists were first utterly baffled by the “θ-τ” puzzle in cosmic rays andeventually revealed a clear picture of parity violation in weak interactions. In this process, several brightest young physicists showed their talents, wisdom, capability and courage, while others gambled with misfortune and involved in credit disputes. Parity violation is revolutionary in physics and bears importance for fundamental particles. Tsung-Dao Lee and Chen-Ning Yang, to their complete surprise, realized that whether parity is conserved or not has never been examined in all previous experiments of weak interactions and thus proposed crucial testing criterion and further suggested several different types of weak interaction experiments for checking. Chien-Shiung Wu responded immediately and in collaboration with colleagues at National Bureau of Standards, discovered unexpectedly the parity violation in the β-decay of Cobalt-60. Three Chinese physicists Lee, Yang and Wu in perfect collaboration pushed the frontiers in theory and experiment, and created a miracle in the science history of mankind.

Bio

Professor Yu-Qing LOU, Physics Department Tsinghua University, CUSPEA Scholar (1980) sponsored by Prof. T. D. Lee, Distinguished Young Scholar overseas of NSFC, Distinguished Professor of MoE, Expert of Ocean Home Program, PhD advisor, IAU member. 1987 PhD in physics from Harvard University USA. PIs and Co-Is of research grants from US NSF Astronomy and Geosciences and from China NSFC, MOST and MoE. Members of high-level science review panels in both countries. Trained numerous young talents. Main interests include: Solar Physics, Space Physics, Cosmic Ray Physics, Astrophysics, and Science Education.