  In this paper we develop a semi-standard Young tableau (SSYT) approach to
construct a basis of non-factorizable superamplitudes in N = 1 massless
supersymmetry. This amplitude basis can be directly translated to a basis for
higher dimensional supersymmetric operators, yielding both the number of
independent operators and their form. We deal with distinguishable (massless)
chiral/vector superfields at first, then generalize the result to the
indistinguishable case. Finally, we discuss the advantages and disadvantages of
this method compared to the previously studied Hilbert series approach.
