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arXiv 1406.2664hep-thhep-phmath-phmath.AGmath.MP
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一个基于高阶正规函数的Feynman积分

A Feynman integral via higher normal functions

Spencer Bloch, Matt Kerr, Pierre Vanhove

摘要:

本文研究了三圈阶标量两点自能的三香蕉图的费曼积分。费曼积分的评价为所有相同的内部质量在两个时空维度。两个计算给出了费曼积分;一个基于解释的积分作为一个非齐次解的经典皮卡德-富克斯微分方程,和其他使用算术代数几何,motivic上同调,和爱森斯坦系列。这两种方法都使用了一个相当特殊的事实,即费曼积分是一个家庭的调节周期相关联的家庭K3表面。我们表明,积分是由一个椭圆triumphms的总和评估在第六根的单位。这个椭圆三对数值与K3族的动机上同调中的一类调节器有关。本文证明了David Broadhurst的一个猜想:在一个特殊的运动学点上,Feynman积分由K3曲面的Hasse-Weil L-函数的一个临界值给出。这一结果被证明是一个特殊的情况下德利涅的关系值的L-函数内的临界带的周期。

英文摘要:

We study the Feynman integral for the three-banana graph defined as the scalar two-point self-energy at three-loop order. The Feynman integral is evaluated for all identical internal masses in two space-time dimensions. Two calculations are given for the Feynman integral; one based on an interpretation of the integral as an inhomogeneous solution of a classical Picard-Fuchs differential equation, and the other using arithmetic algebraic geometry, motivic cohomology, and Eisenstein series. Both methods use the rather special fact that the Feynman integral is a family of regulator periods associated to a family of K3 surfaces. We show that the integral is given by a sum of elliptic trilogarithms evaluated at sixth roots of unity. This elliptic trilogarithm value is related to the regulator of a class in the motivic cohomology of the K3 family. We prove a conjecture by David Broadhurst that at a special kinematical point the Feynman integral is given by a critical value of the Hasse-Weil L-function of the K3 surface. This result is shown to be a particular case of Deligne's conjectures relating values of L-functions inside the critical strip to periods.

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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