No interactions for a collection of spin-two fields intermediated by a massive Rarita–Schwinger field C. Bizdadea, E.M. Cioroianu, D. Cornea, S.O. Saliu and S.C. Săraru Eur. Phys. J. C, 48 1 (2006) 265-289 Published online: 28 July 2006 DOI: 10.1140/epjc/s2006-02620-9