摘要：Dark matter particles of relatively low mass, say below 10 GeV, can be searched for through electron recoil in direct detection experiments. In this talk I’ll introduce our recently developed formalism for addressing dark matter-bound electron scattering. The event rate is generally a sum of three terms, each of which factorizes into a dark matter response function and a generalized atomic response function without cross dependence on dark particles and atomic properties. I’ll show by a series of effective theories, from nonrelativistic quantum mechanics for general two-body scattering to relativistic quantum effective field theories, how experimental data can be translated into constraints on effective interactions at various energy scales. As a specific application, I’ll demonstrate the constraint on an effective interaction that corrects a mistake previously made by both theory and experiment groups.
个人简介：廖益，清华大学工学学士，中国科学院理论物理研究所理学博士。曾先后在清华大学物理系、莱比锡大学理论物理所、南开大学物理科学学院工作，现任华南师范大学量子物质研究院教授。从事粒子物理理论研究，近几年的研究兴趣包括暗物质粒子和中微子的唯象学及相关的有效场论。