Singularity Structure of Maximally Supersymmetric Scattering Amplitudes

被引：72

作者：

Arkani-Hamed, Nima ^{[1
]}

Bourjaily, Jacob L. ^{[2
]}

Cachazo, Freddy ^{[3
]}

Trnka, Jaroslav ^{[4
]}

机构：

[1] Inst Adv Study, Sch Nat Sci, Princeton, NJ 08540 USA

[2] Niels Bohr Int Acad & Discovery Ctr, DK-2100 Copenhagen, Denmark

[3] Perimeter Inst Theoret Phys, Waterloo, ON N2L 2Y5, Canada

[4] CALTECH, Walter Burke Inst Theoret Phys, Pasadena, CA 91125 USA

来源：

PHYSICAL REVIEW LETTERS | 2014年 / 113卷 / 26期

关键词：

D O I：

10.1103/PhysRevLett.113.261603

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

We present evidence that loop amplitudes in maximally supersymmetric (N = 4) Yang-Mills theory (SYM) beyond the planar limit share some of the remarkable structures of the planar theory. In particular, we show that through two loops, the four-particle amplitude in full N = 4 SYM has only logarithmic singularities and is free of any poles at infinity-properties closely related to uniform transcendentality and the UV finiteness of the theory. We also briefly comment on implications for maximal (N = 8) supergravity theory (SUGRA).

引用

页数：5

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