The Effective Potential and Vacuum Stability within Universal Extra Dimensions

Abstract

The one-loop effective potential calculated for a generic model that originates from 5-dimensional theory reduced down to 4 dimensions is considered. The cut-off and dimensional regularization schemes are discussed and compared. It is demonstrated that the prescriptions are consistent with each other and lead to the same physical consequences. Stability of the ground state is discussed for a U(1) model that is supposed to mimic the Standard Model extended to 5 dimensions. It has been shown that fermionic Kaluza-Klein modes can dramatically influence the shape of the effective potential shifting the instability scale even by several orders of magnitude.

arXiv comment29 pages, 5 figures. Revised version to be published in Phys. Rev. D. Several minor changes made. New references added

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Cited by in corpus (10)

• Discrimination of Supersymmetry and Universal Extra Dimensions at Hadron Colliders
• Precise Calculation of the Relic Density of Kaluza-Klein Dark Matter in Universal Extra Dimensions
• The Impact of Universal Extra Dimensions on B -> X_s gamma, B -> X_s gluon, B -> X_s mu^+ mu^-, K_L -> pi^0 e^ +e^-, and epsilon'/epsilon
• Probing Minimal 5D Extensions of the Standard Model: From LEP to an e^+e^- Linear Collider
• Search for Higgs bosons of the Universal Extra Dimensions at the Large Hadron Collider
• Traces on orbifolds: Anomalies and one-loop amplitudes
• The effects of non-universal extra dimensions on the fermion electric dipole moments in the two Higgs doublet model
• Electroweak symmetry breaking and radion stabilization in universal extra dimensions
• Phenomenology of Universal Extra Dimensions
• The possible effects of non-universal extra dimensions on t\to c l_i^- l_j^+ and H^0 \to h^0 (A^0) l_i^- l_j^+ decays in the general two Higgs Doublet model