Orateur
Ying-nan Mao
(IHEP,CAS)
Description
We analyze the $ZH\eta$-vertex (where $\eta$ is a pseudoaxion), its dependence on high scale $f$, and the connection with custodial-violation, based on the effective field theory. As an example, we re-derive this vertex in the simplest little Higgs model. After canonically nomalization of the scalar kinetic part in the lagrangian, we find the exact Goldstone fields, and show that $ZH\eta$-vertex should appear at $\mathcal{O}(v^3/f^3)$ level. This result is quite different from those which have already existed in the literature for over ten years.
Auteurs principaux
Ying-nan Mao
(IHEP,CAS)
M.
Shi-Ping He
(PKU)
Dr
Chen Zhang
(NCTS)
Prof.
Shou-hua Zhu
(PKU)
