Anomalies as a signature of extra dimensions

Abstract

The anomaly cancellation condition of the Standard Model may be unnatural in theories with extra dimensions as an anomaly of a low-energy 4-dimensional theory can be canceled by an inflow from a bulk. This inflow may give rise to an observable effect at low energies. We analyze several physical models in which this effect exists and estimate constraints on its value, imposed by the modern experimental data. We show that the effect can be large enough to be observed even when these constraints are satisfied. Positive result of such an experiment would be a low-energy signature of the existence of extra dimensions.

17 pages. v2: final journal version, references added, some changes to the introduction

References in corpus (3)

• Big Bang Nucleosynthesis (in "The Review of Particle Properties" 2004)
• Brane-worlds and theta-vacua
• Observational manifestations of anomaly inflow

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• Searches for new physics at SND@LHC
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• Chiral Asymmetry from a 5D Higgs Mechanism
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• Neutral-naturalness from a holographic SO(6)/SO(5) composite Higgs model
• Observational manifestations of anomaly inflow
• A Clash-of-Symmetries Mechanism from Intersecting Domain-Wall Branes
• Production of Chern-Simons bosons in decays of mesons