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Next-to-leading order QCD corrections to the direct top quark production via model-independent FCNC couplings at hadron colliders
Liu, JJ; Li, CS; Yang, LL; Jin, LG; Liu, JJ , Tsing Hua Univ, Dept Phys, Beijing 100084, Peoples R China.
2005
发表期刊PHYSICAL REVIEW D
ISSN1550-7998
卷号72期号:7页码:-
摘要We calculated the next-to-leading order (NLO) QCD corrections to the cross sections for direct top quark productions induced by model-independent flavor-changing neutral current couplings at hadron colliders. The NLO results increase the experimental sensitivity to the anomalous couplings. Our results show that the NLO QCD corrections enhance the leading order (LO) total cross sections at the Tevatron Run 2 about 60% for both kappa(tc)(g) and kappa(tu)(g) couplings, and enhance the LO total cross sections at the LHC about 40% for kappa(tc)(g) couplings and 50% for kappa(tu)(g) couplings, respectively. Moreover, the NLO QCD corrections vastly reduce the dependence of the total cross sections on the renormalization or factorization scale, which leads to increased confidence in predictions based on these results.
部门归属Peking Univ, Dept Phys, Beijing 100871, Peoples R China; Acad Sinica, Inst Theoret Phys, Beijing 100080, Peoples R China
关键词Physics Gamma-tot(H0->hadrons) Factorization Currents Decays
学科领域Physics
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收录类别SCI
WOS记录号WOS:000232936300039
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文献类型期刊论文
条目标识符http://ir.itp.ac.cn/handle/311006/13745
专题理论物理所1978-2010年知识产出
通讯作者Liu, JJ , Tsing Hua Univ, Dept Phys, Beijing 100084, Peoples R China.
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Liu, JJ,Li, CS,Yang, LL,et al. Next-to-leading order QCD corrections to the direct top quark production via model-independent FCNC couplings at hadron colliders[J]. PHYSICAL REVIEW D,2005,72(7):-.
APA Liu, JJ,Li, CS,Yang, LL,Jin, LG,&Liu, JJ , Tsing Hua Univ, Dept Phys, Beijing 100084, Peoples R China..(2005).Next-to-leading order QCD corrections to the direct top quark production via model-independent FCNC couplings at hadron colliders.PHYSICAL REVIEW D,72(7),-.
MLA Liu, JJ,et al."Next-to-leading order QCD corrections to the direct top quark production via model-independent FCNC couplings at hadron colliders".PHYSICAL REVIEW D 72.7(2005):-.
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