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Towards the fate of natural composite Higgs model through single t ' search at the 8 TeV LHC

Abstracts

We analyze the observational potential of single t' production in both the t' -> bW and t' -> th decay channels at 8 TeV LHC using an integrated luminosity of 25 fb(-1). Our analysis is based on a simplified model with minimal coset SO(5)/SO(4) in which the t' is a singlet of the unbroken SO(4). The single t' production, as a consequence of electroweak symmetry breaking, is less kinematically suppressed, associated with a light forward jet and has boosted decay products at the 8 TeV LHC. Therefore it provides the most promising channel in searching for a heavy t'. We have exploited the above kinematical features and used the jet substructure method to reconstruct the boosted Higgs in th decay channel. It is shown that a strong constraint on the t'bW coupling (g(t'bW)/g(tbW,SM) < 0.2 similar to 0.3) at the 95% C. L. can be obtained for m(t') subset of (700, 1000) GeV.
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Keywords: Hadronic Colliders;
Journal:JOURNAL OF HIGH ENERGY PHYSICS
Recommended references: Li, Jinmian,Liu, Da,Shu, Jing.(2016).Towards the fate of natural composite Higgs model through single t ' search at the 8 TeV LHC.JOURNAL OF HIGH ENERGY PHYSICS.[ChinaXiv:201606.00330] (Click&Copy)
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[V1] 2016-06-27 10:46:01 chinaXiv:201606.00330V1 Download
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