Why superspace formulation works only for at most 4 supersymmetries?

[Osiris]

Why superspace formulation works only for at most 4 supersymmetries?

For more than 4 supersymmetries, why some of the supersymmetries would not be manifested?


What's the consideration here?


&_&

 

[arivero]

Hmm actually, does superspace formulation work for more than one supersymmetry? Most examples only put a generator in.

 

[Osiris]

i read this statement in the Vol I of "Quantum Field Theory and Strings: A Course for Mathematicians" by Pierre Deligne et al. (eds.).

But there's no further explanation there.