Single vector-like T-quark search via the T → Wb decay channel at the LHeC

被引：20
|
作者：
Han, Lin [1 ]
Zhang, Yan-Ju [1 ]
Liu, Yao-Bei [2 ]
机构：
[1] Xinxiang Med Univ, Sch Biomed Engn, Xinxiang 453003, Peoples R China
[2] Henan Inst Sci & Technol, Xinxiang 453003, Peoples R China
来源：
PHYSICS LETTERS B | 2017年 / 771卷
基金：
中国国家自然科学基金;
关键词：
LITTLEST HIGGS-MODEL; TOP PARTNER; PHYSICS; LHC; GAMMA; ILC;
D O I：
10.1016/j.physletb.2017.05.036
中图分类号：
P1 [天文学];
学科分类号：
0704 ;
摘要：
In this letter, we analyze the prospects of observing the new vector-like T-quark in the leptonic T -> bW decay channel at the Large Hadron Electron Collider (LHeC). The results show that the mixing between the T-quark with the first generation quarks can largely enhance the production cross section. We further study the observability of the single T through the process e(+) p -> T(-> bW(+))(v) over bar (e) -> b(e)(+) + is not an element of(miss)(T) at the LHeC with the proposed 140 GeV electron beam (with 80% polarization) and 7 TeV proton beam. To be as model-independent as possible, a simplified model method with only two free parameters (g* and R-L) has been applied. For three typical T-quark masses, the 3 sigma exclusion limits as well as the 5 sigma discovery region are respectively presented in terms of parameter space regions. (C) 2017 The Author(s). Published by Elsevier B.V.
引用
收藏
页码：106 / 112
页数：7
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