155 citations · 175 across the 2 of their papers we have counts for
2 papers
hep-th2011★ 20 cited
The D^{2k} R^4 Invariants of N=8 Supergravity
Daniel Z. Freedman, Erik Tonni
The existence of a linearized SUSY invariant for N=8 supergravity whose gravitational components are usually called R^4 was established long ago by on-shell superspace arguments. S…
hep-th2010★ 155 cited
E7(7) constraints on counterterms in N=8 supergravity
Niklas Beisert, Henriette Elvang, Daniel Z. Freedman +3
We prove by explicit computation that 6-point matrix elements of D^4R^4 and D^6R^4 in N=8 supergravity have non-vanishing single-soft scalar limits, and therefore these operators v…