Precision Calculations for the T-Odd Quark Pair Production at the CLIC e(+)e(-) Linear Collider

	Precision Calculations for the T-Odd Quark Pair Production at the CLIC e(+)e(-) Linear Collider
	Mahfoudh A B; Guo Lei; Liu Wen; Ma WenGan; Zhang RenYou; Zhang WenJuan
刊名	COMMUNICATIONS IN THEORETICAL PHYSICS
	2014
卷号	62 期号:6 页码:824-832
关键词	MASSLESS PARTICLES BROKEN SYMMETRIES AMPLITUDES MODEL BOSONS LHC littlest Higgs model with T-parity compact linear collider NLO QCD
ISSN号	0253-6102
其他题名	Precision Calculations for the T-Odd Quark Pair Production at the CLIC e~+e~- Linear Collider
英文摘要	We perform the precision calculations for the e(+)e(-) -> q-(q) over bar-(q-(q) over bar- = u-(u) over bar-, c-(c) over bar-,d-(d) over bar-,s-(s) over bar-) processes up to the QCD next-to-leading order (NLO) including full weak decays for the final T-odd mirror quarks in the littlest Higgs model with T-parity (LHT) at the Compact Linear Collider (CLIC). We show the dependence of the leading order (LO) and NLO QCD corrected cross sections on the colliding energy root s, and provide the LO and QCD NLO kinematic distributions of final particles. The results show that the LO cross section can be enhanced by the NLO QCD correction and the K-factor increases obviously when the threshold of the on-shell q-(q) over bar -pair production approaches the colliding energy root s. The K-factor value varies in the range of 1.04 similar to 1.41 in our chosen parameter space. We find that a simple approximation of multiplying the LO kinematic distribution with the integrated K-factor is not appropriate for precision study of the e(+)e(-) -> q-(q) over bar-(q-(q) over bar- = u-(u) over bar-, c-(c) over bar-,d-(d) over bar-,s-(s) over bar-) processes, since the NLO QCD corrections are phase space dependent. It is necessary to calculate the differential cross sections including full NLO QCD corrections to get reliable results.
资助项目	[National Natural Science Foundation of China] ; [Fundamental Research Funds for the Central Universities]
语种	英语
CSCD记录号	CSCD:5299048
内容类型	期刊论文
源URL	[http://119.78.100.186/handle/113462/138839]
专题	中国科学院近代物理研究所
作者单位	中国科学院近代物理研究所
推荐引用方式 GB/T 7714	Mahfoudh A B,Guo Lei,Liu Wen,et al. Precision Calculations for the T-Odd Quark Pair Production at the CLIC e(+)e(-) Linear Collider[J]. COMMUNICATIONS IN THEORETICAL PHYSICS,2014,62(6):824-832.
APA	Mahfoudh A B,Guo Lei,Liu Wen,Ma WenGan,Zhang RenYou,&Zhang WenJuan.(2014).Precision Calculations for the T-Odd Quark Pair Production at the CLIC e(+)e(-) Linear Collider.COMMUNICATIONS IN THEORETICAL PHYSICS,62(6),824-832.
MLA	Mahfoudh A B,et al."Precision Calculations for the T-Odd Quark Pair Production at the CLIC e(+)e(-) Linear Collider".COMMUNICATIONS IN THEORETICAL PHYSICS 62.6(2014):824-832.