Counterterms in extended supergravities
Abstract
Geometrical invariants respecting all necessary symmetries of the theory are shown to exist, starting from the 8th (4th) loop approximation in N = 8 ( N = 4) onshell supergravity. 3loop counterterms are presented on a linearized level for N = 4 and N = 8 theories. The corresponding 3loop nonlinear invariants are discussed.
 Publication:

Physics Letters B
 Pub Date:
 February 1981
 DOI:
 10.1016/03702693(81)909643
 Bibcode:
 1981PhLB...99..122K