报告题目：A Journey on Riemann Spheres: From Scattering Equations to Amplitudes and Form Factors
报告时间：2017-09-04 15:00 (星期一)
报告地点：天津大学北洋园校区32楼B140
报告人：刘正文 博士（Université catholique de Louvain, Belgium）

报告摘要：The Cachazo-He-Yuan formalism expresses the S-matrix as a multiple integral over the moduli space of Riemann spheres with marked points, which is localised by a set of the scattering equations, for various field theories in any number of spacetime dimensions. In this talk, I will give a short introduction to the basic aspects of the scattering equations and CHY formulation, and then will also present some recent developments in this field with a special focus on four-dimensional spacetime.