Tools for NLO automation: Extension of the golem95C integral library.
Computer Physics Communications(2014)
摘要
We present an extension of the program golem95C for the numerical evaluation of scalar integrals and tensor form factors entering the calculation of one-loop amplitudes, which supports tensor ranks exceeding the number of propagators. This extension allows various applications in Beyond the Standard Model physics and effective theories, for example higher ranks due to propagators of spin two particles, or due to effective vertices. Complex masses are also supported. The program is not restricted to the Feynman diagrammatic approach, as it also contains routines to interface to unitarity-inspired numerical reconstruction of the integrand at the tensorial level. Therefore, it can serve as a general integral library in automated programs to calculate one-loop amplitudes.
更多查看译文
关键词
NLO computations,One-loop diagrams,Tensor integrals,Higher spin representations,Effective theories
AI 理解论文
溯源树
样例
生成溯源树,研究论文发展脉络