Classical spinning particles interacting with external gravitational fields
Abstract
In this paper we study the coupling between the pseudoclassical spinning particle and an arbitrary gravitational field. The gravitational field is treated as a gauge field in order to deal with possible contributions from the torsion of spacetime. We find that the spinning particle cannot be coupled directly to the torsion. We study the classical equations of motion which turn out to be the same as derived by Papapetrou in order to describe the so called poledipole singularity in general relativity. We discuss also the structure of the energymomentum tensor for the spinning particle.
 Publication:

Nuclear Physics B
 Pub Date:
 June 1977
 DOI:
 10.1016/05503213(77)904199
 Bibcode:
 1977NuPhB.124..521B