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Top-quark FCNC productions at CERN LHC in topcolor-assisted technicolor model
Cao, Junjie; Liu, Guoli; Yang, Jin Min; Zhang, Huanjun; Cao, J , Henan Normal Univ, Dept Phys, Xinxiang 453007, Peoples R China
2007
发表期刊PHYSICAL REVIEW D
ISSN1550-7998
卷号76期号:1页码:-
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.
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
关键词Minimal Supersymmetric Model Changing Neutral Couplings Standard Model Rare Decays Linear Colliders Hadron Colliders Unconstrained Mssm Symmetry-breaking Physics Susy
学科领域Physics
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收录类别SCI
WOS记录号WOS:000248544300027
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被引频次:32[WOS]   [WOS记录]     [WOS相关记录]
文献类型期刊论文
条目标识符http://ir.itp.ac.cn/handle/311006/5704
专题理论物理所SCI论文
通讯作者Cao, J , Henan Normal Univ, Dept Phys, Xinxiang 453007, Peoples R China
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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):-.
APA Cao, Junjie,Liu, Guoli,Yang, Jin Min,Zhang, Huanjun,&Cao, J , Henan Normal Univ, Dept Phys, Xinxiang 453007, Peoples R China.(2007).Top-quark FCNC productions at CERN LHC in topcolor-assisted technicolor model.PHYSICAL REVIEW D,76(1),-.
MLA Cao, Junjie,et al."Top-quark FCNC productions at CERN LHC in topcolor-assisted technicolor model".PHYSICAL REVIEW D 76.1(2007):-.
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