Forcer: a FORM program for 4-loop massless propagators

Forcer: a FORM program for 4-loop massless propagators
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Forcer:用于 4 环无质量传播器的 FORM 程序

DOI:
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发表时间:
2016
期刊:
影响因子:
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通讯作者:
J. Vermaseren
J. Vermaseren
中科院分区:
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文献类型:
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作者:
Takahiro Ueda;B. Ruijl;J. Vermaseren

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我们提出了一个新的FORM程序,以一种有效的方式分析评估四圈无质量传播型费曼积分。我们的程序FORCER实现参数减少上述类的费曼积分到一组主积分,可以被认为是一个四循环扩展的三循环MINCER程序。由于在四个循环级别的程序结构是非常复杂的,方程很容易变得冗长,大部分的代码是自动生成的方式或与计算机辅助推导。我们通过重新计算文献中已知的量来检查程序的正确性。
We present a new FORM program for analytically evaluating four-loop massless propagator-type Feynman integrals in an efficient way. Our program FORCER implements parametric reductions of the aforementioned class of Feynman integrals into a set of master integrals and can be considered as a four-loop extension of the three-loop MINCER program. Since the program structure at the four-loop level is highly complicated and the equations easily become lengthy, most of the code was generated in an automatic way or with computer-assisted derivations. We have checked correctness of the program by recomputing already-known quantities in the literature.
DOI: 10.1016/j.nuclphysb.2005.01.012
发表时间: 2004-11
期刊: Nuclear Physics
影响因子: --
作者:
M. Czakon
通讯作者: M. Czakon
DOI: 10.1088/1126-6708/2008/10/107
发表时间: 2008-10-01
影响因子: 5.4
作者:
Smirnov, A. V.
通讯作者: Smirnov, A. V.