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Linear relations between N >= 4 supergravity and subleading-color SYM amplitudes
(Springer, 2012-01-01)
The IR divergences of supergravity amplitudes are less severe than those of planar SYM amplitudes, and are comparable to those subleading-color SYM amplitudes that are most subleading in the 1/N expansion, namely O(1/epsilon(L)) ...
Three-dimensional Maxwellian extended Bargmann supergravity
(Springer, 2021)
Three-dimensional Maxwellian extended Bargmann supergravity
(Springer, 2021)
Hairy black holes and duality in an extended supergravity model.
Hairy black holes and duality in an extended supergravity model
On the supersymmetry invariance of flat supergravity with boundary.
The supersymmetry invariance of flat supergravity (i.e., supergravity in the absence of any internal scale in the Lagrangian) in four dimensions on a manifold with non-trivial boundary is explored. Using a geometric approach ...
Small field inflation in N = 1 supergravity with a single chiral superfield
(2016-09-01)
We consider “new inflation” inflationary models at small fields, embedded in minimal N = 1 supergravity with a single chiral superfield. Imposing a period of inflation compatible with experiment severely restricts possible ...
On KLT and SYM-supergravity relations from 5-point 1-loop amplitudes
(Springer, 2011-01-01)
We derive a new non-singular tree-level KLT relation for the n = 5-point amplitudes, with manifest 2(n-2)! symmetry, using information from one-loop amplitudes and IR divergences, and speculate how one might extend it to ...
Linear relations between N >= 4 supergravity and subleading-color SYM amplitudes
(Springer, 2012-01-01)
The IR divergences of supergravity amplitudes are less severe than those of planar SYM amplitudes, and are comparable to those subleading-color SYM amplitudes that are most subleading in the 1/N expansion, namely O(1/epsilon(L)) ...