摘要：

Dimension-8 Wilson coefficients in the Standard Model Effective Field Theory (SMEFT) are subject to the so-called “positivity bounds”, which are derived from the axiomatic principles of quantum field theory. In the parameter space spanned by Wilson coefficients, these bounds carve out various kinds of convex bodies and cones. As a result, several concepts and tools from convex geometry are useful for understanding these positive structures. We will discuss some recent studies on this topic, with a focus on the connection between the convex structure of the parameter space and the UV physics behind the SMEFT.  

报告人简介：
2017至今 副研究员，中国科学院高能物理研究所

2014–2017 Postdoctoral Research Associate, Brookhaven National Laboratory.

2012-2014 Postdoctoral Research Associate, Universite Catholique de Louvain.

2006-2011 Ph. D. Physics, University of Illinois at Urbana-Champaign

由于疫情的影响，我们将采用腾讯会议软件进行在线会议。您可以通过链接 https://meeting.tencent.com/p/8302681937 加入会议，或者直接使用腾讯会议 ID: 8302681937。