T-odd top partner pair production in the dilepton final states at the LHC in the littlest Higgs Model with T-parity

被引:9
|
作者
Yang, Bingfang [1 ]
Zhang, Huaying [1 ]
Hou, Biaofeng [1 ]
Liu, Ning [2 ,3 ]
机构
[1] Henan Normal Univ, Coll Phys & Mat Sci, Xinxiang 453007, Peoples R China
[2] Nanjing Normal Univ, Dept Phys, Nanjing 210023, Jiangsu, Peoples R China
[3] Nanjing Normal Univ, Inst Theoret Phys, Nanjing 210023, Jiangsu, Peoples R China
基金
中国国家自然科学基金;
关键词
top partner; LHC; littlest Higgs Model with T-parity; HADRON COLLIDERS; MEASURING MASSES;
D O I
10.1088/1674-1137/42/10/103102
中图分类号
O57 [原子核物理学、高能物理学];
学科分类号
070202 ;
摘要
In the littlest Higgs model with T-parity, we discuss the pair production of the T-odd top partner (T-) that decays almost 100% into the top quark and the lightest T-odd particle (A(H)). Considering the current constraints, we investigate the observability of the T-odd top partner pair production through the process pp -> T-(T) over bar--> t (t) over barA(H) A(H) in the final states with two leptons at 14 TeV LHC. We analyze the signal significance and found that the lower limits on the T-odd top partner mass are approximately 1.2 TeV, 1.3 TeV, and 1.4 TeV at the 2 sigma confidence level at 14 TeV LHC with an integrated luminosities of 30 fb(-1), 100 fb(-1), and 300 fb(-1), respectively. This lower limit can be increased to approximately 1.5(1.6) TeV if we used 1000(3000) fb(-1) of the integrated luminosity.
引用
收藏
页数:6
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