Chen, YX (reprint author), Zhejiang Univ, Zhejiang Inst Modern Phys, Hangzhou 310027, Zhejiang, Peoples R China.
部门归属:
[Chen, Yi-Xin; Du, Yi-Jian] Zhejiang Univ, Zhejiang Inst Modern Phys, Hangzhou 310027, Zhejiang, Peoples R China; [Feng, Bo] Zhejiang Univ, Ctr Math Sci, Hangzhou 310027, Zhejiang, Peoples R China; [Du, Yi-Jian] Chinese Acad Sci, Kavli Inst Theoret Phys China, Beijing 100190, Peoples R China; [Feng, Bo] Chinese Acad Sci, Key Lab Frontiers Theoret Phys, Inst Theoret Phys, Beijing 100190, Peoples R China
英文摘要:
In last couple years, an important relation (BCJ relation) between color-ordered tree-level scattering amplitudes of gauge theory has inspired many studies. This relation implies that the minimal basis for the color-ordered tree-level amplitudes is (n-3)! and other amplitudes can be expanded into a particular chosen basis. In this paper we will prove the conjectured explicit minimal basis expansion. For this purpose we will write down general BCJ relation of gauge theory by taking the field theory limit of BCJ relation in string theory. Then we prove these general BCJ relations using BCFW on-shell recursion relation. Using these general BCJ relations, we prove the conjectured explicit minimal-basis expansion of gauge theory tree amplitudes inductively.
Chen, YX,Du, YJ,Feng, B. A proof of the explicit minimal-basis expansion of tree amplitudes in gauge field theory[J]. JOURNAL OF HIGH ENERGY PHYSICS,2011(2):112.
