On the ABJM four-point amplitude at three loops and BDS exponentiation

On the ABJM four-point amplitude at three loops and BDS exponentiation
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关于ABJM三环四点振幅与BDS取幂

DOI:
10.1007/jhep11(2014)077
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发表时间:
2014
影响因子:
5.4
通讯作者:
M. Leoni
M. Leoni
中科院分区:
物理与天体物理2区
文献类型:
--
作者:
M. S. Bianchi;M. Leoni

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本文研究了ABJM理论中的三圈四点振幅。我们确定了传播子个数最多的对偶共形不变积分,并通过两粒子割固定了它们的系数。评估这种组合的积分在维正则化,我们提供的证据,指数的振幅,包括有限项。此外,我们还证明了三个回路的振幅可以用超越性一致程度的经典多对数来表示。
A bstractWe study the three-loop four-point amplitude in ABJM theory. We determine the dual conformal invariant integrals with highest number of propagators and fix their coefficients by two-particle cuts. Evaluating such a combination of integrals in dimensional regularization we provide evidence for exponentiation of the amplitude, including the finite terms. In addition we show that the three-loop amplitude can be expressed in terms of classical polylogarithms of uniform degree of transcendentality.
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发表时间: 2013-05
影响因子: 5.4
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