Infinities within graviton scattering amplitudes
Infinities within graviton scattering amplitudes
复制标题
引力子散射振幅内的无穷大
DOI：
10.1088/0264-9381/14/2/009
复制
发表时间：
1995
影响因子：
3.5
通讯作者：
Paul Norridge
中科院分区：
文献类型：
--
作者：
D. Dunbar;Paul Norridge
我们提出了一种方法来确定引力子散射振幅的无穷大。无穷大是IR和UV的组合。通过理解软奇点，我们可以提取UV无穷大，并将其与有效作用量中的反项联系起来。作为这种方法的演示，我们重新推导的紫外线无限存在于1圈水平时，重力耦合到物质。
We present unitarity as a method for determining the infinities present in graviton scattering amplitudes. The infinities are a combination of IR and UV. By understanding the soft singularities we may extract the UV infinities and relate these to counterterms in the effective action. As a demonstration of this method we re-derive the UV infinities present at the 1-loop level when gravity is coupled to matter.