摘要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.
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.
SHEN Jie-Fen**;CUI Xiao-Min;LI Yu-Qi;GAO Yin-Hao
. Single Production of a Heavy T-Quark in the Left-Right Twin Higgs Model at LHeC[J]. 中国物理快报, 2011, 28(11): 111203-111203.
SHEN Jie-Fen**, CUI Xiao-Min, LI Yu-Qi, GAO Yin-Hao
. Single Production of a Heavy T-Quark in the Left-Right Twin Higgs Model at LHeC. Chin. Phys. Lett., 2011, 28(11): 111203-111203.
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