Complete reduction of integrals in two-loop five-light-parton scattering amplitudes  

作　　者：Xin Guan Xiao Liu Yan-Qing Ma 关鑫;刘霄;马滟青(School of Physics and State Key Laboratory of Nuclear Physics and Technology,Peking University,Beijing 100871,China;Center for High Energy Physics,Peking University,Beijing 100871,China;Collaborative Innovation Center of Quantum Matter,Beijing 100871,China)

机构地区：[1]School of Physics and State Key Laboratory of Nuclear Physics and Technology,Peking University,Beijing 100871,China [2]Center for High Energy Physics,Peking University,Beijing 100871,China [3]Collaborative Innovation Center of Quantum Matter,Beijing 100871,China

出　　处：《Chinese Physics C》2020年第9期62-68,共7页中国物理C（英文版）

基　　金：Supported in part by the National Natural Science Foundation of China(11875071,11975029)and the High-performance Computing Platform of Peking University。

摘　　要：We reduce all the most complicated Feynman integrals in two-loop five-light-parton scattering amplitudes to basic master integrals,while other integrals can be reduced even easier.Our results are expressed as systems of linear relations in the block-triangular form,very efficient for numerical calculations.Our results are crucial for complete next-to-next-to-leading order quantum chromodynamics calculations for three-jet,photon,and/or hadron production at hadron colliders.To determine the block-triangular relations,we develop an efficient and general method,which may provide a practical solution to the bottleneck problem of reducing multiloop multiscale integrals.

关 键 词：Feynman integrals REDUCTION five-light-parton scattering 

分 类 号：O572[理学—粒子物理与原子核物理]