A simple collinear limit of scattering amplitudes at strong coupling
arXiv:1006.3306 · doi:10.1007/JHEP03(2011)087
Abstract
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 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.
v3: 22 pages, comments and a new subsection 5.1 added, typos fixed
References in corpus (7)
- Gluon scattering amplitudes at strong coupling
- MHV Amplitudes in N=4 Super Yang-Mills and Wilson Loops
- Yangian symmetry of scattering amplitudes in N=4 super Yang-Mills theory
- Hexagon Wilson loop = six-gluon MHV amplitude
- Two-Loop Iteration of Five-Point N=4 Super-Yang-Mills Amplitudes
- On the two-loop hexagon Wilson loop remainder function in N=4 SYM
- Scattering amplitudes at strong coupling for 4K gluons