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题名: Top-quark FCNC productions at CERN LHC in topcolor-assisted technicolor model
作者: Cao, Junjie ;  Liu, Guoli ;  Yang, Jin Min ;  Zhang, Huanjun
刊名: PHYSICAL REVIEW D
出版日期: 2007
卷号: 76, 期号:1, 页码:-
关键词: MINIMAL SUPERSYMMETRIC MODEL ;  CHANGING NEUTRAL COUPLINGS ;  STANDARD MODEL ;  RARE DECAYS ;  LINEAR COLLIDERS ;  HADRON COLLIDERS ;  UNCONSTRAINED MSSM ;  SYMMETRY-BREAKING ;  PHYSICS ;  SUSY
学科分类: Physics
通讯作者: Cao, J , Henan Normal Univ, Dept Phys, Xinxiang 453007, Peoples R China
部门归属: Henan Normal Univ, Dept Phys, Xinxiang 453007, Peoples R China; Technion Israel Inst Technol, Dept Phys, IL-32000 Haifa, Israel; Univ Libre Bruxelles, Serv Phys Theor, B-1050 Brussels, Belgium; Acad Sinica, Inst Theoret Phys, Beijing 100080, Peoples R China
英文摘要: We evaluate the top-quark FCNC productions induced by the topcolor-assisted technicolor (TC2) model at the LHC. These productions proceed, respectively, through the parton-level processes gg -> t (c) over bar, cg -> t, cg -> tg, cg -> tZ, and cg -> t gamma. We show the dependence of the production rates on the relevant TC2 parameters and compare the results with the predictions in the minimal supersymmetric model. We find that for each channel the TC2 model allows for a much larger production rate than the supersymmetric model. All these rare productions in the TC2 model can be enhanced above the 3 sigma sensitivity of the LHC. Since in the minimal supersymmetric model only cg -> t is slightly larger than the corresponding LHC sensitivity, the observation of these processes will favor the TC2 model over the supersymmetric model. In case of unobservation, the LHC can set meaningful constraints on the TC2 parameters.
收录类别: SCI
原文出处: 查看原文
WOS记录号: WOS:000248544300027
Citation statistics: 
内容类型: 期刊论文
URI标识: http://ir.itp.ac.cn/handle/311006/5704
Appears in Collections:理论物理所1978-2010年知识产出_期刊论文

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Recommended Citation:
Cao, Junjie,Liu, Guoli,Yang, Jin Min,et al. Top-quark FCNC productions at CERN LHC in topcolor-assisted technicolor model[J]. PHYSICAL REVIEW D,2007,76(1):-.
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