Application of the DRA method to the calculation of the four-loop QED-type tadpoles
Application of the DRA method to the calculation of the four-loop QED-type tadpoles
复制标题
DRA方法在四环QED型蝌蚪计算中的应用
DOI：
10.1007/jhep01(2011)068
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发表时间：
2010
影响因子：
5.4
通讯作者：
I. Terekhov
中科院分区：
文献类型：
--
作者：
Roman N. Lee;I. Terekhov
我们将这种方法应用于四圈QED型蝌蚪的计算。对于任意的时空维数$ \mathcal{D} $，结果具有多重收敛和的形式。利用这些结果，我们得到了$ \mathcal{D} = 3 $和$ \mathcal{D} = 4 $附近积分的展开式.
We apply the DRA method to the calculation of the four-loop ‘QED-type’ tadpoles. For arbitrary space-time dimensionality $ \mathcal{D} $ the results have the form of multiple convergent sums. We use these results to obtain the ϵ-expansion of the integrals around $ \mathcal{D} = 3 $ and $ \mathcal{D} = 4 $.