巨大的三环形式因素在平面上的限制

Proceedings of Loops and Legs in Quantum Field Theory — PoS(LL2018) Pub Date : 2018-07-16 DOI:10.22323/1.303.0009

J. Ablinger, J. Bluemlein, P. Marquard, N. Rana, Carsten Schneider

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引用次数: 14

摘要

在矢量电流、轴向矢量电流、标量电流和伪标量电流的情况下，给出了三环重夸克形因子的彩色平面和完全轻夸克QCD贡献。本文提出了一种基于一般基微分方程求主积分的新方法，该方法适用于任何一阶分解系统。解析结果用调和多对数和实值环切调和多对数表示。

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Massive three loop form factor in the planar limit

We present the color planar and complete light quark QCD contributions to the three loop heavy quark form factors in the case of vector, axial-vector, scalar and pseudo-scalar currents. We eval- uate the master integrals applying a new method based on differential equations for general bases, which is applicable for any first order factorizing systems. The analytic results are expressed in terms of harmonic polylogarithms and real-valued cyclotomic harmonic polylogarithms.

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Proceedings of Loops and Legs in Quantum Field Theory — PoS(LL2018)

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