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

Bingfang Yang; Huaying Zhang; Biaofeng Hou; Ning Liu

doi:10.1088/1674-1137/42/10/103102

Chinese Physics C> 2018, Vol. 42> Issue(10) : 103102 DOI: 10.1088/1674-1137/42/10/103102

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

1.
College of Physics and Materials Science, Henan Normal University, Xinxiang 453007, China
2.
Department of Physics and Institute of Theoretical Physics, Nanjing Normal University, Nanjing 210023, China

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Abstract：
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_→ttA_HA_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 2σ 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.
- top partner ,
- LHC ,
- littlest Higgs Model with T-parity

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Bingfang Yang, Huaying Zhang, Biaofeng Hou and Ning Liu. T-odd top partner pair production in the dilepton final states at the LHC in the littlest Higgs Model with T-parity[J]. Chinese Physics C, 2018, 42(10): 103102. doi: 10.1088/1674-1137/42/10/103102

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Received: 2018-05-18

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Supported by National Natural Science Foundation of China (NNSFC) (11405047, 11305049) and the Startup Foundation for Doctors of Henan Normal University (qd15207).

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沈阳化工大学材料科学与工程学院沈阳 110142

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

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

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