Two-loop finiteness of D=2 supergravity
نویسندگان
چکیده
منابع مشابه
On UV Finiteness of the Four Loop N=8 Supergravity
The 4-loop 4-point amplitude in N=8 d=4 supergravity is UV finite due to supersymmetry. Even better UV behavior of the 4-loop 4-point amplitude, analogous to that of N=4 SYM theory, has been recently established by computation in [1]. All n-point 4-loop amplitudes with n > 5 are finite on dimensional grounds. However, the situation with the 5-point amplitudes remained unclear. In this paper we ...
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In this lecture we summarize recent calculations pointing to the possible ultraviolet finiteness of N = 8 supergravity in four dimensions. We outline the modern unitarity method, which enables multiloop calculations in this theory and allows us to exploit a remarkable relation between tree-level gravity and gauge-theory amplitudes. We also describe a link between observed cancellations at loop ...
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ژورنال
عنوان ژورنال: Physics Letters B
سال: 1992
ISSN: 0370-2693
DOI: 10.1016/0370-2693(92)90161-v