A Lagrangian of Bargmann–Wigner equations for massive particles of spin 2

Abstract

Following the ideas of Guralnik and Kibble and those of Larsen and Repko, we introduce a general method to calculate the first-order Lagrangian of Bargmann–Wigner equations (BWE) of arbitrary spin, and make explicit calculations in case of spin 2. Finally, some considerations on the motivation of this method and on the invariance of the Lagrangian under the symmetric group and the general Lorentz group are discussed.