Direct numerical integration for multi-loop integrals
Direct numerical integration for multi-loop integrals
复制标题
多环积分的直接数值积分
DOI:
10.1140/epjc/s10052-013-2321-1
复制
发表时间:
2013
期刊:
影响因子:
--
通讯作者:
S. Weinzierl
中科院分区:
文献类型:
--
作者:
S. Becker;S. Weinzierl
We present a method to construct a suitable contour deformation in loop momentum space for multi-loop integrals. This contour deformation can be used to perform the integration for multi-loop integrals numerically. The integration can be performed directly in loop momentum space without the introduction of Feynman or Schwinger parameters. The method can be applied to finite multi-loop integrals and to divergent multi-loop integrals with suitable subtraction terms. The algorithm extends techniques from the one-loop case to the multi-loop case. Examples at two and three loops are discussed explicitly.
登录
查看更多内容
DOI:
10.1016/j.nuclphysbps.2010.08.047
发表时间:
2010
期刊:
arXiv: High Energy Physics - Phenomenology
影响因子:
--
作者:
M. Assadsolimani;S. Becker;C. Reuschle;S. Weinzierl
通讯作者:
S. Weinzierl
影响因子:
5
作者:
M. Assadsolimani;S. Becker;S. Weinzierl
通讯作者:
S. Weinzierl
影响因子:
5.4
作者:
S. Becker;Ch. Reuschle;S. Weinzierl
通讯作者:
S. Weinzierl
影响因子:
6.3
作者:
Borowka, Sophia;Carter, Jonathon;Heinrich, Gudrun
通讯作者:
Heinrich, Gudrun
DOI:
--
发表时间:
2006
期刊:
Computer Physics Communications 174
影响因子:
--
作者:
Y.Kurihara;T.Kaneko
通讯作者:
T.Kaneko