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Title: Gauge invariance and mass without spontaneous symmetry breaking

Journal Article · · Phys. Rev. Lett.; (United States)

In this letter a manifestly covariant quantization of electrodynamics is studied, starting from a gauge-invariant Lagrangian. In this framework, it is found that the photon can have a nonzero bare mass, while maintaining gauge invariance. It is then observed that these ideas can be used in other theories with U(1) local gauge invariance, including chiral symmetries, in order to have mass and gauge invariance without having to introduce spontaneous symmetry breaking. Local baryon symmetry is considered.

Research Organization:
Departamento de Fisica, Facultad de Ciencias Fisicas y Matematicas, Universidad de Chile, Castilla 5487, Santiago, Chile
OSTI ID:
5994986
Journal Information:
Phys. Rev. Lett.; (United States), Vol. 43:8
Country of Publication:
United States
Language:
English