Reduction of one-loop amplitudes at the integrand level - NLO QCD calculations

被引:0
|
作者
Ossola, Giovanni [1 ]
Papaidopoulos, Costas G. [1 ]
Pittau, Roberto [2 ]
机构
[1] NCSR Demokritos, Athens 15310, Greece
[2] Univ Granada, Dept Fis Teor & Cosmos & CAFPE, E-18071 Granada, Spain
来源
ACTA PHYSICA POLONICA B | 2008年 / 39卷 / 07期
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中图分类号
O4 [物理学];
学科分类号
0702 ;
摘要
The recently proposed method (OPP) to extract the coefficients of the scalar one-loop integrals to any multi-particle (sub)-amplitude is described. Within this method no analytical information on the structure of the amplitude is needed, allowing for a purely numerical, but still algebraic, implementation of the algorithm. The algorithm can be used to automatically perform one-loop calculation both in QCD and in the EW Theory. As an application, we give QCD one-loop results for the process pp -> ZZZ at the LHC.
引用
收藏
页码:1685 / 1693
页数:9
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