| THE PHYSICS OF ELEMENTARY PARTICLES AND FIELDS |
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Single Production of a Heavy T-Quark in the Left-Right Twin Higgs Model at LHeC |
| SHEN Jie-Fen1**, CUI Xiao-Min2, LI Yu-Qi2, GAO Yin-Hao2
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1Department of Life Science and Technology, Xinxiang Medical University, Xinxiang 453003
2Henan Institute of Science and Technology, Xinxiang 453003
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| Cite this article: |
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SHEN Jie-Fen, CUI Xiao-Min, LI Yu-Qi et al 2011 Chin. Phys. Lett. 28 111203 |
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Abstract In the context of the left-right twin Higgs model, we study single production of a T−quark at the Large Hadron electron Collider based ep and γp colliders, which proceed via the processes e+b→νeT and γb→W−T. For the main decay mode T→φ+b→tbb, these two processes mainly transfer to the final states of 3b+ l (e or μ) + missing ET and 3b + 2l + missing ET, respectively. With the electron energy Ee=500 GeV and photon energy Ep=7 TeV, we find that the production rates can reach tens fb when the heavy T−quark mass mT<600 GeV. A simple phenomenological analysis is also given for the decay mode T→W+b. Our numerical results show that the SM background can be reduced by applying a cut on the transverse momentum of the final b−quark and the invariant mass of Wb. However, such a channel is only useful for a tiny parameter space.
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| Keywords:
12.60.Fr
14.65.Jk
14.70.Fm
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Received: 22 August 2011
Published: 30 October 2011
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| PACS: |
12.60.Fr
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(Extensions of electroweak Higgs sector)
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14.65.Jk
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(Other quarks (e.g., 4th generations))
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14.70.Fm
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(W bosons)
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