tbW vertex in the Littlest Higgs Model with T-parity
High Energy Physics - Phenomenology
2009-02-26 v3
Abstract
A study of the effective tbW vertex is done in the littlest Higgs model with T parity that includes the one loop induced weak dipole coefficient f_{2R}. The top's width, the W-boson helicity in the t-> bW^+ decay as well as the t-channel and the s-channel modes of single top quark production at the LHC are then obtained for the tbW coupling. Our calculation is done in the Feynman-'t Hooft gauge, and we provide details of the analysis, like exact formulas (to all orders of the expansion variable v/f) of masses and mixing angles of all the particles involved. Also, a complete and exact diagonalization (and normalization) of the scalar sector of the model is made.
Cite
@article{arxiv.0810.4545,
title = {tbW vertex in the Littlest Higgs Model with T-parity},
author = {F. Penunuri and F. Larios},
journal= {arXiv preprint arXiv:0810.4545},
year = {2009}
}
Comments
Version published in Phys. Rev. D79, 015013 (2009)