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Probing new physics from top-charm associated productions at linear colliders
Cao, JJ; Liu, GL; Yang, JM; Cao, JJ , Henan Normal Univ, Dept Phys, Henan 453002, Peoples R China.
2005
发表期刊EUROPEAN PHYSICAL JOURNAL C
ISSN1434-6044
卷号41期号:3页码:381-391
摘要The top-charm associated productions via e(+)e(-), e(-)gamma and gamma gamma collisions at linear colliders, which are extremely suppressed in the standard model ( SM), could be significantly enhanced in some extensions of the SM. In this article we calculate the full contribution of the top-color-assisted technicolor ( TC2) to these productions and then compare the results with the existing predictions of the SM, the general two-Higgs-doublet model and the minimal supersymmetric model. We find that the TC2 model predicts much larger production rates than other models and the largest-rate channel is gamma gamma -> t (c) over bar, which exceeds 10 fb for a large part of the parameter space. From the analysis of the observability of such productions at the future linear colliders, we find that the predictions of the TC2 model can reach the observable level for a large part of the parameter space while the predictions of other models are hardly accessible.
部门归属Henan Normal Univ, Dept Phys, Henan 453002, Peoples R China; Acad Sinica, Inst Theoret Phys, Beijing 100080, Peoples R China; CCAST, World Lab, Beijing 100080, Peoples R China
关键词Topcolor-assisted Technicolor Changing Neutral Currents Parity-violating Supersymmetry Energy e(+)e(-) Colliders Photon-photon Collisions Quark Rare Decay Standard Model Fermilab-tevatron 2-higgs-doublet Models Yukawa Corrections
学科领域Physics
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收录类别SCI
WOS记录号WOS:000231123500012
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文献类型期刊论文
条目标识符http://ir.itp.ac.cn/handle/311006/13805
专题理论物理所SCI论文
通讯作者Cao, JJ , Henan Normal Univ, Dept Phys, Henan 453002, Peoples R China.
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Cao, JJ,Liu, GL,Yang, JM,et al. Probing new physics from top-charm associated productions at linear colliders[J]. EUROPEAN PHYSICAL JOURNAL C,2005,41(3):381-391.
APA Cao, JJ,Liu, GL,Yang, JM,&Cao, JJ , Henan Normal Univ, Dept Phys, Henan 453002, Peoples R China..(2005).Probing new physics from top-charm associated productions at linear colliders.EUROPEAN PHYSICAL JOURNAL C,41(3),381-391.
MLA Cao, JJ,et al."Probing new physics from top-charm associated productions at linear colliders".EUROPEAN PHYSICAL JOURNAL C 41.3(2005):381-391.
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