Magnetic Monopoles and Distorted Gauge Symmetry

摘要

In the theory, there is no quartic potential of scalar fields and the vector boson mass M is due to an intrinsic symmetry breakdown. Nevertheless, the Lagrangian is strictly invariant under the distorted qauge transformation which reduces to the usual gauge transformation when M=0. The quantum field theory with such Lagrangian is renormalizable by standard power counting. There is a general formal proof of unitarity and gauge independence which has been substantiated by explict calculations at the 2-loop level.