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Relations of loop partial amplitudes in gauge theory by Unitarity cut method
Feng, B; Jia, Y; Huang, RJ; Jia, Y (reprint author), Zhejiang Univ, Zhejiang Inst Modern Phys, Hangzhou 310027, Peoples R China.
2012
发表期刊NUCLEAR PHYSICS B
ISSN0550-3213
卷号854期号:1页码:243-275
摘要It is well known that under the color-decomposition, one-loop amplitude of gluons contains partial amplitudes of single and double trace structures, and particularly all partial amplitudes of double trace structure can be expressed as a linear combination of partial amplitudes of single trace structure. Using unitarity cut method, we prove that this result is the natural consequence of tree-level Kleiss-Kuijf relation. Generalizing the unitarity cut method to two-loop (triple cut in this case), we show that, unlike the one-loop case, partial amplitudes of double and triple trace structures cannot be expressed as a linear combination of partial amplitudes of leading-color single trace structure. For partial amplitudes of subleading-color single trace structure, we have shown a very non-trivial Kleiss-Kuijf relation for six and seven-point amplitudes, which is one new result of our paper and cannot be obtained by U(1)-decoupling method. Mysteriously, when we consider the case of eight points. Kleiss-Kuijf relation must be modified for subleading-color single trace partial amplitudes. (C) 2011 Elsevier B.V. All rights reserved.
部门归属[Feng, Bo; Jia, Yin; Huang, Rijun] Zhejiang Univ, Zhejiang Inst Modern Phys, Hangzhou 310027, Peoples R China; [Feng, Bo] Zhejiang Univ, Ctr Math Sci, Hangzhou 310027, Peoples R China; [Feng, Bo] Chinese Acad Sci, Kavli Inst Theoret Phys China, Beijing 100190, Peoples R China
关键词Super-yang-mills Algebraic Reduction Analytic Properties Feynman Diagrams Scalar Integrals Tree Amplitudes Scattering
学科领域Physics
资助者Fundamental Research Funds for the Central Universities [2010QNA3015]; Chinese NSF [10875104, 11031005] ; Fundamental Research Funds for the Central Universities [2010QNA3015]; Chinese NSF [10875104, 11031005] ; Fundamental Research Funds for the Central Universities [2010QNA3015]; Chinese NSF [10875104, 11031005] ; Fundamental Research Funds for the Central Universities [2010QNA3015]; Chinese NSF [10875104, 11031005] ; Fundamental Research Funds for the Central Universities [2010QNA3015]; Chinese NSF [10875104, 11031005] ; Fundamental Research Funds for the Central Universities [2010QNA3015]; Chinese NSF [10875104, 11031005] ; Fundamental Research Funds for the Central Universities [2010QNA3015]; Chinese NSF [10875104, 11031005] ; Fundamental Research Funds for the Central Universities [2010QNA3015]; Chinese NSF [10875104, 11031005]
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收录类别SCI
语种英语
资助者Fundamental Research Funds for the Central Universities [2010QNA3015]; Chinese NSF [10875104, 11031005] ; Fundamental Research Funds for the Central Universities [2010QNA3015]; Chinese NSF [10875104, 11031005] ; Fundamental Research Funds for the Central Universities [2010QNA3015]; Chinese NSF [10875104, 11031005] ; Fundamental Research Funds for the Central Universities [2010QNA3015]; Chinese NSF [10875104, 11031005] ; Fundamental Research Funds for the Central Universities [2010QNA3015]; Chinese NSF [10875104, 11031005] ; Fundamental Research Funds for the Central Universities [2010QNA3015]; Chinese NSF [10875104, 11031005] ; Fundamental Research Funds for the Central Universities [2010QNA3015]; Chinese NSF [10875104, 11031005] ; Fundamental Research Funds for the Central Universities [2010QNA3015]; Chinese NSF [10875104, 11031005]
WOS记录号WOS:000296167500010
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被引频次:12[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/311006/15200
专题理论物理所SCI论文
通讯作者Jia, Y (reprint author), Zhejiang Univ, Zhejiang Inst Modern Phys, Hangzhou 310027, Peoples R China.
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GB/T 7714
Feng, B,Jia, Y,Huang, RJ,et al. Relations of loop partial amplitudes in gauge theory by Unitarity cut method[J]. NUCLEAR PHYSICS B,2012,854(1):243-275.
APA Feng, B,Jia, Y,Huang, RJ,&Jia, Y .(2012).Relations of loop partial amplitudes in gauge theory by Unitarity cut method.NUCLEAR PHYSICS B,854(1),243-275.
MLA Feng, B,et al."Relations of loop partial amplitudes in gauge theory by Unitarity cut method".NUCLEAR PHYSICS B 854.1(2012):243-275.
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