arXivDaily arXiv每日学术速递 周一至周五更新
arXiv 0905.2326hep-th
收藏

N=8超引力在四个环上的紫外行为

The Ultraviolet Behavior of N=8 Supergravity at Four Loops

Z. Bern, J. J. Carrasco, L. J. Dixon, H. Johansson, R. Roiban

摘要:

我们描述了N=8超引力的完整四圈四粒子振幅的构造。振幅是紫外线有限的,不仅在四维中,而且在五维中也是如此。观测到的额外抵消提供了额外的非平凡证据,证明在四维空间中N=8的超引力可能是紫外线有限的所有阶微扰理论。

英文摘要:

We describe the construction of the complete four-loop four-particle amplitude of N=8 supergravity. The amplitude is ultraviolet finite, not only in four dimensions, but in five dimensions as well. The observed extra cancellations provide additional non-trivial evidence that N=8 supergravity in four dimensions may be ultraviolet finite to all orders of perturbation theory.

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。

↑