Probing new physics from top-charm associated productions at linear colliders

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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.
刊名	EUROPEAN PHYSICAL JOURNAL C
	2005
卷号	41 期号:3 页码:381-391
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
ISSN号	1434-6044
英文摘要	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.
学科主题	Physics
URL标识	查看原文
WOS记录号	WOS:000231123500012
公开日期	2012-08-30
内容类型	期刊论文
源URL	[http://ir.itp.ac.cn/handle/311006/13805]
专题	理论物理研究所_理论物理所1978-2010年知识产出
通讯作者	Cao, JJ , Henan Normal Univ, Dept Phys, Henan 453002, Peoples R China.
推荐引用方式 GB/T 7714	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.