Physics – High Energy Physics – High Energy Physics - Theory
Scientific paper
2010-12-17
J. Phys. A 44, 305405 (2011)
Physics
High Energy Physics
High Energy Physics - Theory
24 pages, content modified, structure modified
Scientific paper
We analyze the symmetry group of massive Yang-Mills theories and their quantization strongly motivated by an already proposed alternative to the Standard Model of electroweak interactions without Higgs. In these models the mass generation of the intermediate vector bosons is based on a non-Abelian Stueckelberg mechanism where the dynamics of the Goldstone-like bosons is addressed by a partial-trace Non-Linear-Sigma piece of the Lagrangian. In spite of the high non-linearity of the scalar sector, the existence of an infinite number of symmetries, extending the traditional gauge group, allows us to sketch a group-theoretical quantization algorithm specially suited to non-linear systems, which departs from usual canonical quantization. On the quantum representation space of this extended symmetry group, a quantum Hamiltonian preserving the representation is given, whose classical analog reproduces the equations of motion.
Aldaya Victor
Calixto Manuel
López-Ruiz Francisco F.
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