On the $ZH\eta$ vertex in the simplest Little Higgs Model
High Energy Physics - Phenomenology
2018-04-05 v3
Abstract
The issue of deriving vertex in the simplest Little Higgs (SLH) model is revisited. Special attention is paid to the treatment of non-canonically-normalized scalar kinetic matrix and vector-scalar two-point transitions. We elucidate a general procedure to diagonalize a general vector-scalar system in gauge theories and apply it to the case of SLH. The resultant vertex is found to be different from those which have already existed in the literature for a long time. We also present an understanding of this issue from an effective field theory viewpoint.
Keywords
Cite
@article{arxiv.1709.08929,
title = {On the $ZH\eta$ vertex in the simplest Little Higgs Model},
author = {Shi-Ping He and Ying-nan Mao and Chen Zhang and Shou-hua Zhu},
journal= {arXiv preprint arXiv:1709.08929},
year = {2018}
}
Comments
Accepted version by PRD; 11 pages with two columns; Presentation of Sec. II refined; EFT analysis added in Sec. IIIC; References updated