arXivDaily arXiv每日学术速递 周一至周五更新
arXiv 0807.4129hep-ph
收藏

用扇形decomposiTion方法(FIESTA)计算费曼积分

Feynman Integral Evaluation by a Sector decomposiTion Approach (FIESTA)

A. V. Smirnov, M. N. Tentyukov

摘要:

到目前为止,已知的扇区分解算法有两种:一种是Binoth和Heinrich的原始私有算法,另一种是Bogner和Weinzierl去年公布的算法。我们提出了一个新的程序,执行扇区分解并随后集成表达式。该程序将一组传播子和一组指数作为输入,并返回相应积分的ε展开式。

英文摘要:

Up to the moment there are two known algorithms of sector decomposition: an original private algorithm of Binoth and Heinrich and an algorithm made public lastyear by Bogner and Weinzierl. We present a new program performing the sector decomposition and integrating the expression afterwards. The program takes a set of propagators and a set of indices as input and returns the epsilon-expansion of the corresponding integral.

机构、总结、中文摘要均由AI分析而来,可能存在错误,请以论文正文为准。

↑