Generalised bottom-up holography and walking technicolour

Details Generalised bottom-up holography and walking technicolour Generalised bottom-up holography and walking technicolour

2008-09-08

arxiv.org/abs/0809.1324v1

Phys.Rev.D79:075004,2009

Physics

High Energy Physics

High Energy Physics - Phenomenology

12 pages, 5 figures

Scientific paper

10.1103/PhysRevD.79.075004

In extradimensional holographic approaches the flavour symmetry is gauged in the bulk, that is, treated as a local symmetry. Imposing such a local symmetry admits fewer terms coupling the (axial) vectors and (pseudo)scalars than if a global symmetry is imposed. The latter is the case in standard low-energy effective Lagrangians. Here we incorporate these additional, a priori only globally invariant terms into a holographic treatment by means of a Stueckelberg completion and alternatively by means of a Legendre transformation. This work was motivated by our investigations concerning dynamical electroweak symmetry breaking by walking technicolour and we apply our findings to these theories.

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