$n$-point amplitudes with a single negative-helicity graviton

$n$-point amplitudes with a single negative-helicity graviton
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DOI:
10.1103/physrevd.92.065024
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发表时间:
2015-07
期刊:
影响因子:
5
通讯作者:
S. Alston;D. Dunbar;Warren B. Perkins
S. Alston;D. Dunbar;Warren B. Perkins
中科院分区:
物理与天体物理2区
文献类型:
--
作者:
S. Alston;D. Dunbar;Warren B. Perkins

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利用增广递推技术构造了具有单负螺旋外支的n点单环引力子散射振幅表达式。我们分析了这些振幅的软极限,并证明它们具有超出推测的普遍行为的软行为。
We construct an expression for the n-point one-loop graviton scattering amplitude with a single negative helicity external leg using an augmented recursion technique. We analyse the soft-limits of these amplitudes and demonstrate that they have soft behaviour beyond the conjectured universal behaviour.