报告专家：廖益教授，南开大学
报告时间：2019年9月23日，上午9：30-10：30
报告地点：行健楼436

Abstract: The nature of neutrinos remains mysterious. If they are Majorana particles, there should be other lepton number violating effects besides their small mass. While the issue may be addressed at high energy colliders and in low energy precision experiments, the effective field theory approach offers a means to connect all experimental data at low and high energies to new physics underlying lepton number violation. In this talk, I’ll take the example of lepton number violating kaon decay to illustrate how to accomplish this in the framework of effective field theory. I’ll discuss several effective field theories defined by the electroweak scale and chiral symmetry breaking scale: how to build them correctly and how to link them all the way to new physics beyond the electroweak scale. I’ll also emphasize that study of lepton number violating meson decays can provide information not available in the popular nuclear neutrinoless double beta decays. 

报告人简介：廖益，南开大学物理学教授，博士生导师，国家杰出青年基金获得者。曾为清华大学物理系副教授，德国莱比锡大学理论物理所助理教授。研究方向是粒子物理唯象学，主持多项国家自然科学基金及人才项目，当前研究兴趣为中微子物理、暗物质和超强电磁场中的粒子物理。