三质量三角系数的解析结构
Analytic Structure of Three-Mass Triangle Coefficients
摘要:
"三质量三角形“是出现在单圈规范理论振幅中的一类积分函数。我们将讨论如何复杂的分析性质和奇异性结构,这些振幅可以与广义酉技术相结合,以产生紧凑的三质量三角系数的表达式。我们提出的公式N=1的贡献的n点NMHV振幅。
英文摘要:
``Three-mass triangles'' are a class of integral functions appearing in one-loop gauge theory amplitudes. We discuss how the complex analytic properties and singularity structures of these amplitudes can be combined with generalised unitarity techniques to produce compact expressions for three-mass triangle coefficients. We present formulae for the N=1 contributions to the n-point NMHV amplitude.
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