Probing Minimal 5D Extensions of the Standard Model

Details Probing Minimal 5D Extensions of the Standard Model Probing Minimal 5D Extensions of the Standard Model

2004-08-25

arxiv.org/abs/hep-ph/0408279v1

Physics

High Energy Physics

High Energy Physics - Phenomenology

4 pages, LaTeX, 2 eps figures, to appear in the proceedings of the International Conference on Linear Colliders (LCWS 2004), A

Scientific paper

We analyze non-universal 5D standard model extension, where some or all of the gauge and Higgs fields propagate in a flat extra dimension, while all other degrees of freedom are localized on a S^1/Z_2 orbifold brane. From LEP data, model-dependent bounds on the compactification scale M between 4 and 6 TeV are derived. We analyze the correlations between M and the SM Higgs mass m_H. Investigating the prospects at an e^+e^- linear collider such as TESLA, we show that the so-called GigaZ option has the potential to improve the LEP bounds by about a factor 2. At the center of mass energy of 800 GeV and with an integrated luminosity of 10^3 fb^{-1}, linear collider experiments can probe compactification scales up to 20-30 TeV and beyond, depending on the systematic errors.

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