Higgsless fermion masses and unitarity

Details Higgsless fermion masses and unitarity Higgsless fermion masses and unitarity

2004-02-11

arxiv.org/abs/hep-ph/0402118v2

Phys.Rev. D69 (2004) 116005

Physics

High Energy Physics

High Energy Physics - Phenomenology

20 pages, RevTeX; typos corrected, accepted for publication in Phys.Rev.D

Scientific paper

10.1103/PhysRevD.69.116005

We discuss the consistency of fermion mass generation by boundary conditions and brane localized terms in higher dimensional Higgsless models of gauge symmetry breaking. The sum rules imposed by tree-level unitarity and Ward Identities are applied to check the consistency of mass generation by orbifold projections and more general boundary conditions consistent with the variational principle. We find that the sum rules are satisfied for boundary conditions corresponding to brane localized mass and kinetic terms consistent with the reduced gauge symmetry on the brane.

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