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Absence of Three-Loop Four-Point Divergences in N=4 Supergravity

We compute the coefficient of the potential three-loop divergence in pure N=4 supergravity and show that it vanishes, contrary to expectations from symmetry arguments. The recently uncovered duality between color and kinematics is used to greatly streamline the calculation. We comment on all-loop ca...

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Detalles Bibliográficos
Autores principales: Bern, Zvi, Davies, Scott, Dennen, Tristan, Huang, Yu-tin
Lenguaje:eng
Publicado: 2012
Materias:
Acceso en línea:https://dx.doi.org/10.1103/PhysRevLett.108.201301
http://cds.cern.ch/record/1424668