Probing the Flavor-Changing tc vertex via Tree-Level Processes: e+e- -> t bar-c nu_e bar-nu_e, t bar-c e+ e- and t -> c W+ W-
High Energy Physics - Phenomenology
2009-10-30 v1
Abstract
The reactions e+e- -> t bar-c nu_e bar-nu_e, t bar-c e+ e- are very sensitive probes of the flavor-changing-scalar couplings which can occur in a model with one extra Higgs doublet. At the Next Linear Collider, with a center of mass energy of sqrt{s}=0.5--2 TeV, several hundreds and up to thousands of such events may be produced if the mass of the light neutral Higgs is a few hundred GeV. We also briefly comment on the decays t -> c W+ W-, t -> c Z Z. All of these reactions are severely suppressed in the Standard Model
Cite
@article{arxiv.hep-ph/9703221,
title = {Probing the Flavor-Changing tc vertex via Tree-Level Processes: e+e- -> t bar-c nu_e bar-nu_e, t bar-c e+ e- and t -> c W+ W-},
author = {S. Bar-Shalom and G. Eilam and A. Soni and J. Wudka},
journal= {arXiv preprint arXiv:hep-ph/9703221},
year = {2009}
}
Comments
8 pages, 4 figures, Plain latex (figures in separate files)