Fernández-Rañada, Antonio2023-06-212023-06-211972-050022-248810.1063/1.1666035https://hdl.handle.net/20.500.14352/64919© 1972 The American Institute of Physics.The generalized covariant Dirac equation for a certain five‐dimensional universe is studied. If a torsion invariant is included in the free Lagrangian, it is shown that particlelike stable solutions exist having definite positive rest energy, spin, and corresponding antiparticles. The treatment is throughout classicaljournal articlehttp://dx.doi.org/10.1063/1.1666035http://scitation.aip.orgmetadata only access537ElectricidadElectrónica (Física)2202.03 Electricidad