A simple collinear limit of scattering amplitudes at strong coupling

被引：16

作者：

Yang, Gang ^{[1
]}

机构：

[1] Univ London, Dept Phys, Ctr Res String Theory, London E1 4NS, England

来源：

JOURNAL OF HIGH ENERGY PHYSICS | 2011年 / 03期

关键词：

Extended Supersymmetry; Duality in Gauge Field Theories; AdS-CFT Correspondence; Integrable Field Theories; LOOP;

D O I：

10.1007/JHEP03(2011)087

中图分类号：

O412 [相对论、场论]; O572.2 [粒子物理学];

学科分类号：

摘要：

Collinear limit usually provides strong constraints for scattering amplitudes. At strong coupling, collinear limit of the amplitudes in N=4 SYM is related to the large mass limit of the corresponding Y system. In this paper, we consider a special case in which all mass parameters are taken to be large, which corresponds to a multi-double-collinear limit in which a n-side polygon becomes pentagons. This limit provides a useful constraint for the amplitudes, in particular can be used to fix the periods part for the case of 4K gluons, which is the last missing piece of full amplitudes.

引用

页数：25

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