IFLP 13074
INSTITUTO DE FISICA LA PLATA
Unidad Ejecutora - UE
artículos
Título:
The cusp anomalous dimension at three loops and beyond
Autor/es:
DIEGO H. CORREA; JOHANNES HENN; JUAN M. MALDACENA; AMIT SEVER
Revista:
JOURNAL OF HIGH ENERGY PHYSICS
Editorial:
SPRINGER
Referencias:
Lugar: Trieste; Año: 2012 vol. 05 p. 1 - 30
ISSN:
1126-6708
Resumen:
We derive an analytic formula at three loops for the cusp anomalous dimension in N = 4 super Yang-Mills. This is done by exploiting the relation of the latterto the Regge limit of massive amplitudes. We comment on the corresponding three loopsquark anti-quark potential. Our result also determines a considerable part of the threeloopcusp anomalous dimension in QCD. Finally, we consider a limit in which only ladderdiagrams contribute to physical observables. In that limit, a precise agreement with strongcoupling is observed.
