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The no-triangle hypothesis for Script N = 8 supergravity

2006; Springer Nature; Volume: 2006; Issue: 12 Linguagem: Inglês

10.1088/1126-6708/2006/12/072

1127-2236

N. E. J. Bjerrum-Bohr, David C. Dunbar, H. Ita, Warren B. Perkins, Kasper Risager,

Cosmology and Gravitation Theories

We study the perturbative expansion of N=8 supergravity in four dimensions from the viewpoint of the ``no-triangle'' hypothesis, which states that one-loop graviton amplitudes in N=8 supergravity only contain scalar box integral functions. Our computations constitute a direct proof at six-points and support the no-triangle conjecture for seven-point amplitudes and beyond.