Physics – High Energy Physics – High Energy Physics - Theory
Scientific paper
2009-05-22
Mod.Phys.Lett.A24:2731-2740,2009
Physics
High Energy Physics
High Energy Physics - Theory
9 pages, LaTeX, minor changes
Scientific paper
10.1142/S0217732309032034
We incorporate the parameters of the gauge group G into the gauge theory of interactions through a non-linear partial-trace sigma-model Lagrangian on G/H. The minimal coupling of the new (Goldstone-like) scalar bosons provides mass terms to those intermediate vector bosons associated with the quotient G/H, without spoiling gauge invariance, remaining the H-vector potentials massless. The main virtue of a partial trace on G/H, rather than on the entire G, is that we can find an infinite-dimensional symmetry, with non-trivial Noether invariants, which ensures quantum integrability in a non-canonical quantization scheme. The present formalism is explicitly applied to the case G=SU(2)x U(1), as a Higgs-less alternative to the Standard Model of electroweak interactions, although it can also be used in low-energy phenomenological models for strong interactions.
Aldaya Victor
Calixto Manuel
López-Ruiz Francisco F.
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