Speaker
浩 孙
(中国科学院理论物理研究所)
Description
The Higgs effective field theory (HEFT) is an effective field theory in the broken phase, providing a more general realization of the EW symmetry breaking, which includes the SMEFT as a particular case. There are more effective operators than the SMEFT and can be matched to the latter ones. I will discuss the HEFT, especially its effective operators basis. The key points are
- A general method to construct effective operators utilizing the Young diagrams and its applications to the HEFT, including the management of the Nambu-Goldstone bosons and the spurions;
- The Hilbert series method extended to the nonlinear symmetry and the discrete symmetries such as the parity and charge conjugation, and its applications to the HEFT to count effective operators.
