2021/04/09(Fri) 11:00 -12:00 五樓第一會議室 5F, 1st Meeting Room
Title
An On-shell Formulation of Chiral Perturbation Theory
Speaker
Prof. Ian Low (Department of Physics and Astronomy, Northwestern University)Abstract
We will discuss an entirely on-shell formulation of the mesonic sector of Chiral Perturbation Theory (ChPT), without recourse to the Lagrangian, which is based on recent progresses in understanding the infrared structure of Nambu-Goldstone bosons. The construction provides an efficient method to enumerate the low-energy constants of ChPT, in which operators relations such as those arising from equations of motion, integration-by-parts, hermiticity, and symmetry structure, manifest themselves in simple ways.
Language
演講語言 (Language): in English
Hosted by