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Volume :29 Issue : 1 2002
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Gauge invariant electromagnetic interactions
Auther : WALTER WYSS
Department of Physics, University of Colorado, Boulder, CO 80309 USA. e-mail: w2ch@hotmail.com
ABSTRACT
A vector field belonging to the restmass zero, spin one representation of the inhomogeneous Lorentz-group is minimally coupled to the current of a charged scalarfield and also to the current of a Dirac spinor field. The gauge group of the vector field uniquely determines its free Lagrangian and also the interaction currents.