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Asymptotically safe gravitons in electroweak precision physics

  • Erik Gerwick
Regular Article - Theoretical Physics

Abstract

Asymptotic safety offers a field theory based UV completion to gravity. For low Planck scales, gravitational effects on low-energy precision observables cannot be neglected. We compute the contribution to the ρ parameter from asymptotically safe gravitons and find that in contrast to effective theory, constraints on models with more than three extra dimensions are significantly weakened. The relative size of the trans-Planckian contribution increases proportional to the number of extra dimensions.

Keywords

Extra Dimension High Energy Phys Effective Theory Electroweak Precision Custodial Symmetry 
These keywords were added by machine and not by the authors. This process is experimental and the keywords may be updated as the learning algorithm improves.

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Copyright information

© Springer-Verlag / Società Italiana di Fisica 2011

Authors and Affiliations

  1. 1.SUPA, School of Physics and AstronomyThe University of EdinburghEdinburghScotland, UK

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