E8 in N = 8 $$ \mathcal{N}=8 $$ supergravity in four dimensions
نویسندگان
چکیده
منابع مشابه
N = 1 supergravity reduction in four dimensions
We discuss the reduction of N = 2 supergravity to N = 1, by a consistent truncation of the second gravitino multiplet. It is well known that for globally supersymmetric theories with particle content of spin 0, 1 2 , 1 any theory with N supersymmetries can be regarded as a particular case of a theory with a number N ′ < N of supersymmetries [1]. To prove this it is sufficient to decompose the N...
متن کاملFour - point Amplitudes in N = 8 Supergravity and Wilson Loops
Prompted by recent progress in the study of N = 4 super Yang-Mills amplitudes, and evidence that similar approaches are relevant to N = 8 supergravity, we investigate possible iterative structures and applications of Wilson loop techniques in maximal supergravity. We first consider the two-loop, four-point MHV scattering amplitude in N = 8 supergravity, confirming that the infrared divergent pa...
متن کاملUltraviolet behavior of N = 8 supergravity at four loops.
We describe the construction of the complete four-loop four-particle amplitude of N=8 supergravity. The amplitude is ultraviolet finite, not only in four dimensions, but in five dimensions as well. The observed extra cancellations provide additional nontrivial evidence that N=8 supergravity in four dimensions may be ultraviolet finite to all orders of perturbation theory.
متن کاملOn 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 ...
متن کاملHigher spin N = 8 supergravity
The product of two N = 8 supersingletons yields an infinite tower of massless states of higher spin in four dimensional anti de Sitter space. All the states with spin s ≥ 1 correspond to generators of Vasiliev’s super higher spin algebra shsE(8|4) which contains the D = 4, N = 8 anti de Sitter superalgebra OSp(8|4). Gauging the higher spin algebra and introducing a matter multiplet in a quasi-a...
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ژورنال
عنوان ژورنال: Journal of High Energy Physics
سال: 2018
ISSN: 1029-8479
DOI: 10.1007/jhep01(2018)024