Om. Ivanov et Ag. Savinkov, RELATIVISTIC SPIN 1 2 PARTICLE IN THE TOTAL SPACE OF THE PRINCIPAL U(1) MONOPOLE BUNDLE/, Theoretical and mathematical physics, 93(1), 1992, pp. 1112-1125
The quantum dynamics of a relativistic spin 1/2 particle moving in the
total space P of the principal U(1) bundle associated with the Dirac
monopole is described. It is completely characterized in terms of an a
dditional U(1) bundle P that is intimately assoicated with the scatte
ring problem. A representation in which the dynamics takes its simples
t form is obtained. The lift of the Lorentz group into the total space
is constructed.