Astronomy and Astrophysics – Astrophysics – General Relativity and Quantum Cosmology
Scientific paper
2008-05-26
Astronomy and Astrophysics
Astrophysics
General Relativity and Quantum Cosmology
10 pages, to appear in the Proceedings of the X Italian-Korean Symposium on Relativistic Astrophysics, held in Pescara (Italy)
Scientific paper
We discuss properties of particles and fields in a multi-dimensional space-time, where the geometrization of gauge interactions can be performed. For instance, in a 5-dimensional Kaluza-Klein manifold we argue that the motion of charged spinning bodies is obtain in a Papapetrou-like formulation. As far as spinors are concerned, we outline how the gauge coupling can be recognized by a proper dependence on extra-coordinates and by the dimensional reduction procedure.
Cianfrani Francesco
Lacquaniti Valentino
Montani Giovanni
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