Explicitly broken N=4 supersymmetry model with a finite vacuum energy
Krasnikov N. V.
The Ν — 4 supersymmetry model with an explicit soft breaking of the supersymmetry is shown to have a finite vacuum energy density in any order of perturbation theory if the mass terms satisfy the additional sum rule Σ/=0>1/2(2/+1)(l^mJsO.