RT Journal Article T1 Elementary spinorial excitations in a model universe A1 Fernández-Rañada, Antonio AB 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 classical PB American Institute of Physics SN 0022-2488 YR 1972 FD 1972-05 LK https://hdl.handle.net/20.500.14352/64919 UL https://hdl.handle.net/20.500.14352/64919 NO © 1972 The American Institute of Physics. DS Docta Complutense RD 4 abr 2025