Four-Loop Collinear Anomalous Dimension in N = 4 Yang-Mills Theory
| dc.creator | Cachazo, Freddy | |
| dc.creator | Spradlin, Marcus | |
| dc.creator | Volovich, Anastasia | |
| dc.date | 2007-07-12 | |
| dc.date | 2007-11-01 | |
| dc.date.accessioned | 2026-07-07T11:17:46Z | |
| dc.date.available | 2026-07-07T11:17:46Z | |
| dc.description | We report a calculation in N = 4 Yang-Mills of the four-loop term g^4 in the collinear anomalous dimension g(lambda) which governs the universal subleading infrared structure of gluon scattering amplitudes. Using the method of obstructions to extract this quantity from the 1/epsilon singularity in the four-gluon iterative relation at four loops, we find g^4 = -1240.9 with an estimated numerical uncertainty of 0.02%. We also analyze the implication of our result for the strong coupling behavior of g(lambda), finding support for the string theory prediction computed recently by Alday and Maldacena using AdS/CFT. | |
| dc.description | 5 pages, 2 figures | |
| dc.identifier | https://arxiv.org/abs/0707.1903 | |
| dc.identifier | http://arxiv.org/abs/0707.1903 | |
| dc.identifier | Phys.Rev.D76:106004,2007 | |
| dc.identifier | doi:10.1103/PhysRevD.76.106004 | |
| dc.identifier.uri | http://salesiana.dossiersoluciones.com/handle/123456789/193116 | |
| dc.subject | High Energy Physics - Theory | |
| dc.title | Four-Loop Collinear Anomalous Dimension in N = 4 Yang-Mills Theory | |
| dc.type | text |