On Action Invariance under Linear Spinor-Vector Supersymmetry
  We show explicitly that a free Lagrangian expressed in terms of scalar, spinor, vector and Rarita-Schwinger (RS) fields is invariant under linear supersymmetry transformations generated by a global spinor-vector parameter. A (generalized) gauge invariance of the Lagrangian for the RS field is also discussed. 
Kazunari Shima and Motomu Tsuda