Testing the Littlest Higgs Model with T-parity at the Large Hadron Collider
High Energy Physics - Phenomenology
2008-11-26 v1
Abstract
In the framework of the littlest Higgs model with T-parity (LHT), we study the production processes of T-even (T_+) and T-odd (T_-) partners of the top quark at the Large Hadron Collider (LHC). We show that the signal events can be distinguished from the standard-model backgrounds, and that information about mass and mixing parameters of the top partners can be measured with relatively good accuracies. With the measurements of these parameters, we show that a non-trivial test of the LHT can be performed. We also discuss a possibility to reconstruct the thermal relic density of the lightest T-odd particle A_H using the LHC results, and show that the scenario where A_H becomes dark matter may be checked.
Cite
@article{arxiv.0806.3837,
title = {Testing the Littlest Higgs Model with T-parity at the Large Hadron Collider},
author = {Shigeki Matsumoto and Takeo Moroi and Kazuhiro Tobe},
journal= {arXiv preprint arXiv:0806.3837},
year = {2008}
}
Comments
26 pages, 6 figures