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Associated productions of the new gauge boson B_H in the littlest higgs model with a SM gauge boson via e^+e^- collision

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Chinese Physics C 2008年第1期32卷 18-23页

作者：王学雷曾庆国金振兰刘素真 College of Physics and Information Engineering Henan Normal University

With the high energy and luminosity, the planned ILC has the considerable capability to probe the new heavy particles predicted by the new physics models. In this paper, we study the potential to discover the lightest new gauge boson BH of the littlest higgs model via the processes e^＋e^- →γ（Z）BH at the ILC. The results show that the production rates of these two processes are large enough to detect BH in a wide range of the parameter spaces, specially for the process e^＋e^- →γ TBH. Furthermore, there exist some decay modes for BH which can provide the typical signal and clean backgrounds. Therefore, the new gauge boson BH should be observable via these production processes with the running of the ILC if it exist.

关键词： littlest higgs model cross section new gauge boson BH

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Single Production of Vector-Like Top Quark in the littlest higgs model at TeV Energy e-γ Colliders

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Chinese Physics Letters 2007年第1期24卷 57-60页

作者：刘要北王学雷曹永华 Department of Mechanical and Electric Engineering Henan Institute of Science and Technology Xinxiang 453003 College of Physics and Information Engineering Henan Normal University Xinxiang 453007

The existence of a new coloured vector-like heavy fermion T is a crucial prediction in little higgs models, which play a key role in breaking the electroweak symmetry. The littlest higgs model is the most economical one among various little higgs models. In the context of the littlest higgs model, we study single production of the new heavy vector-like quark and discuss the possibility of detecting this new particle in the future LC experiment. It is found thai, the production cross section is in the range of 1.7× 10^-3 - 30 fb at TeV energy electron-photon collider with √s- 3 TeV and a yearly integrated luminosity of ,￡ = 500 fb^-1.

关键词： Single Production Vector-Like Top Quark littlest higgs model TeV Energy e-γ Colliders

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Process e~-γ→e~-H in littlest higgs model

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Communications in Theoretical Physics 2006年第11期46卷 891-894页

作者： YUE Chong-Xing,~+ ZHANG Feng, YANG Shuo, and SUN Yah-Bin Department of Physics, Liaoning Normal University, Dalian 116029, China Department of Physics Liaoning Normal University Dalian 116029 China

In the context of the littlest higgs (LH) model, we estimatc the production cross section of the process e~-γ→e~-H in the future high-energy linear e~+e~- collider (IL C) with the center-of-mass (CM) energy S=500 *** numerical results show that the contributions of the LH model to this process are very small in most of the parameter space allowed by the electroweak precision measurement data, and are very difficult to be detected in the future ILC experiments.

关键词： littlest higgs model higgs boson high-energy linear e~+e~- collider

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Tau Leptonic Decay τ→llvτ in littlest higgs model

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Communications in Theoretical Physics 2004年第8期42卷 253-256页

作者： YUE Chong-Xing WANG Wei Department of Physics, Liaoning Normal University, Dalian 116029, China

We consider the (?) leptonic decay (?)→l(?) in the framework of the littlest higgs(LH)model and calculatethe corrections of new particles to this *** find that the contributions of the charged scalars can be safely ignoredand the LH model is in perfect agreement with the universality of the couplings of the SU gauge bosons to the leptoniccharged *** corrections of the LH model to the T leptonic decay (?)→l(?) are not sensitive to the parameterc,but depend strongly on the parameters f and *** precision measured data about the (?) leptonic decay demandthat the parameter f approximately equal 3.5 TeV and x>0.1,while agree with the general expectation based on otherphenomenological explorations.

关键词： tau leptonic decay littlest higgs model corrections

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