Searching for a neutral top-Higgs in association with top-quark pairs at an e+e- collider in the TC2 model

  • We investigate the associated production of the neutral top-Higgs ht0 with a pair of top-quarks in the context of the topcolor-assisted technicolor (TC2) model at the future e+e- Linear Colliders (LC) i.e. e+e- → tt ht0. We calculate the production rate and present the distributions of the transverse momenta of top-Higgs and top-quarks. The results show that the total cross section is typically of the order of 1.0-7.5 fb in the energy range between 1000 GeV and 2000 GeV of the LC for the whole top-Higgs mass region of interest. It should be distinctly possible that hundreds or even thousands of ht0 signals can be produced per year at the LC given the luminosity L=500 fb-1.
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LI Bing-Zhong and HAN Jin-Zhong. Searching for a neutral top-Higgs in association with top-quark pairs at an e+e- collider in the TC2 model[J]. Chinese Physics C, 2011, 35(10): 908-913. doi: 10.1088/1674-1137/35/10/004
LI Bing-Zhong and HAN Jin-Zhong. Searching for a neutral top-Higgs in association with top-quark pairs at an e+e- collider in the TC2 model[J]. Chinese Physics C, 2011, 35(10): 908-913.  doi: 10.1088/1674-1137/35/10/004 shu
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Received: 2011-01-05
Revised: 2011-01-27
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Searching for a neutral top-Higgs in association with top-quark pairs at an e+e- collider in the TC2 model

Abstract: We investigate the associated production of the neutral top-Higgs ht0 with a pair of top-quarks in the context of the topcolor-assisted technicolor (TC2) model at the future e+e- Linear Colliders (LC) i.e. e+e- → tt ht0. We calculate the production rate and present the distributions of the transverse momenta of top-Higgs and top-quarks. The results show that the total cross section is typically of the order of 1.0-7.5 fb in the energy range between 1000 GeV and 2000 GeV of the LC for the whole top-Higgs mass region of interest. It should be distinctly possible that hundreds or even thousands of ht0 signals can be produced per year at the LC given the luminosity L=500 fb-1.

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