Enhanced ultraviolet cancellations in supergravity theories
Supergravity theories are better behaved in the ultraviolet than had been believed possible. It may even be true that certain theories supergravity theories, such as N=8 supergravity, are ultraviolet finite to all loop orders. We describe a new set of ultraviolet cancellations beyond those identified via standard symmetry arguments. We give examples in N=4 supergravity at three loops and N=5 supergravity at four loops.
UCLA
Speaker
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Zvi BERN
