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Elementary spinorial excitations in a model universe Fernández-Rañada, Antonio 537 Electricidad Electrónica (Física) 2202.03 Electricidad © 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 classical Depto. de Estructura de la Materia, Física Térmica y Electrónica Fac. de Ciencias Físicas TRUE pub 2023-06-21T02:07:39Z 2023-06-21T02:07:39Z 1972-05 journal article https://hdl.handle.net/20.500.14352/64919 0022-2488 10.1063/1.1666035 metadata only access American Institute of Physics