N >= 4 supergravity amplitudes from gauge theory at two loops

作者：Boucher Veronneau C^*; Dixon L J

来源：The Journal of High Energy Physics, 2011, 2011(12): 046.

DOI：10.1007/JHEP12(2011)046

• Supergravity Models
• Supersymmetric gauge theory

We present the full two-loop four-graviton amplitudes in N = 4, 5, 6 supergravity. These results were obtained using the double-copy structure of gravity, which follows from the recently conjectured color-kinematics duality in gauge theory. The two-loop four-gluon scattering amplitudes in N = 0, 1, 2 supersymmetric gauge theory are a second essential ingredient. The gravity amplitudes have the expected infrared behavior: the two-loop divergences are given in terms of the squares of the corresponding one-loop amplitudes. The finite remainders are presented in a compact form. The finite remainder for N = 8 supergravity is also presented, in a form that utilizes a pure function with a very simple symbol.

• 出版日期2011-12