Physics – High Energy Physics – High Energy Physics - Theory
Scientific paper
2006-06-06
JHEP 0702:044,2007
Physics
High Energy Physics
High Energy Physics - Theory
7 pages
Scientific paper
10.1088/1126-6708/2007/02/044
We adapt the spinorial geometry method to investigate supergravity
backgrounds with near maximal number of supersymmetries. We then apply the
formalism to show that the IIB supergravity backgrounds with 31 supersymmetries
preserve an additional supersymmetry and so they are maximally supersymmetric.
This rules out the existence of IIB supergravity preons.
Gran Ulf
Gutowski Jan
Papadopoulos George
Roest Diederik
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