In the context of the left-right twin Higgs model,we study single production of a𝑇-quark at the Large Hadron electron Collider based𝑒ep and γpcolliders,which proceed via the processes𝑒e+bw...In the context of the left-right twin Higgs model,we study single production of a𝑇-quark at the Large Hadron electron Collider based𝑒ep and γpcolliders,which proceed via the processes𝑒e+b𝑏→ˉveT and𝛾γp→W−T.For the main decay mode𝑇T→Φ+b𝑏→tbbˉ,these two processes mainly transfer to the final states of 3b+l(e or μ)+missing Et and 3b𝑏+2l𝑙+missing𝐸𝑇,respectively.With the electron energy𝐸Ee=500 GeV and photon energy𝐸Ep=7TeV,we find that the production rates can reach tens fb when the heavy𝑇−quark mass𝑚mt<600 GeV.A simple phenomenological analysis is also given for the decay modeT→W+b𝑏.Our numerical results show that the SM background can be reduced by applying a cut on the transverse momentum of the final𝑏b-quark and the invariant mass of Wb.However,such a channel is only useful for a tiny parameter space.展开更多
基金Supported in Part by the National Natural Science Foundation of China under Grant No.10775039 the Foundation of He'nan Educational Committee under Grant No.2009B140003
基金by the National Natural Science Foundation of China under Grant No 10775039the Foundation of He’nan Educational Committee(No 2009B140003).
文摘In the context of the left-right twin Higgs model,we study single production of a𝑇-quark at the Large Hadron electron Collider based𝑒ep and γpcolliders,which proceed via the processes𝑒e+b𝑏→ˉveT and𝛾γp→W−T.For the main decay mode𝑇T→Φ+b𝑏→tbbˉ,these two processes mainly transfer to the final states of 3b+l(e or μ)+missing Et and 3b𝑏+2l𝑙+missing𝐸𝑇,respectively.With the electron energy𝐸Ee=500 GeV and photon energy𝐸Ep=7TeV,we find that the production rates can reach tens fb when the heavy𝑇−quark mass𝑚mt<600 GeV.A simple phenomenological analysis is also given for the decay modeT→W+b𝑏.Our numerical results show that the SM background can be reduced by applying a cut on the transverse momentum of the final𝑏b-quark and the invariant mass of Wb.However,such a channel is only useful for a tiny parameter space.
