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arXiv 0911.1979hep-th
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三角梯形图的变换

Transformations of triangle ladder diagrams

Igor Kondrashuk, Alvaro Vergara

摘要:

它示出了如何对偶空间图形表示的动量积分对应于三角形梯形图与任意数量的梯级可以被转换为半菱形。在论文arXiv:0803.3420 [hep-th]中,半菱形通过保角积分替换与代表四维动量空间中四点阶梯积分的对偶空间图像的菱形相关。按照本文所描述的方式,我们不需要使用菱形(四点)图的已知结果作为导出arXiv:0803.3420 [hep-th]关系的外部输入,然而,菱形图的结果在本证明中作为从三角形梯形图到半菱形图的逐步图解变换的中间结果出现。

英文摘要:

It is shown how dual space diagrammatic representation of momentum integrals corresponding to triangle ladder diagrams with an arbitrary number of rungs can be transformed to half-diamonds. In paper arXiv:0803.3420 [hep-th] the half-diamonds were related by conformal integral substitution to the diamonds which represent the dual space image of four-point ladder integrals in the four-dimensional momentum space. Acting in the way described in the present paper we do not need to use the known result for diamond (four-point) diagrams as an external input in deriving relations of arXiv:0803.3420 [hep-th], however, that result for the diamond diagram arises in the present proof as an intermediate consequence in a step-by-step diagrammatic transformation from the triangle ladder diagram to the half-diamond diagrams.

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。

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