The Second-Order Equation from the (1/2,0)+ (0,1/2) Representation of the Poincare Group

2026-07-072026-07-07http://salesiana.dossiersoluciones.com/handle/123456789/55154On the basis of the first principles we derive the Barut-Wilson-Fushchich second-order equation in the (1/2,0)+(0,1/2) representation. Then we discuss the possibility of the description of various mass and spin states in such a framework.6pp. ReVTeX fileHigh Energy Physics - TheoryThe Second-Order Equation from the (1/2,0)+ (0,1/2) Representation of the Poincare Grouptext