2026-07-072026-07-07http://salesiana.dossiersoluciones.com/handle/123456789/105952We propose the relativistic point particle models invariant under the bosonic counterpart of SUSY. The particles move along the world lines in four dimensional Minkowski space extended by $N$ commuting Weyl spinors. The models provide after first quantization the non--Grassmann counterpart of chiral superfields, satisfying Klein--Gordon equation. Free higher spin fields obtained by expansions of such chiral superfields satisfy the N=2 Bargman--Wigner equations in massive case and Fierz--Pauli equations in massless case.LaTeX, 8 pages. Contribution to the Proceedings of the International Workshop "Supersymmetries and Quantum Symmetries" (SQS'05, Dubna, July 27-31, 2005)High Energy Physics - Theorytext