Physics – High Energy Physics – High Energy Physics - Phenomenology
Scientific paper
2003-01-09
Phys.Rev. D67 (2003) 076010
Physics
High Energy Physics
High Energy Physics - Phenomenology
Version to appear in Phys. Rev. D Typos corrected and remarks added to clarify figures
Scientific paper
10.1103/PhysRevD.67.076010
We show how the tree level unitarity violations of compactified extra dimensional extensions of the Standard Model become much stronger when the scalar sector is included in the bulk. This effect occurs when the couplings are not suppressed for larger Kaluza-Klein levels, and could have relevant consequences for the phenomenology of the next generation of colliders. We also introduce a simple and generic formalism to obtain unitarity bounds for finite energies, taking into account coupled channels including the towers of Kaluza-Klein excitations.
Curtis Stefania de
Dominici Daniele
Pelaez Jose Ramon
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