Time-Varying alpha and Particle Physics

Abstract

We argue that models in which an observable variation of the fine structure constant is explained by motion of a cosmic scalar field, are not stable under renormalization, and require massive fine tuning that cannot be explained by any known mechanism.

7 pages, latex, JHEP.cls

References in corpus (3)

• The Cosmological Evolution of the Nucleon Mass and the Electroweak Coupling Constants
• Implications of Gauge Unification for Time Variation of the Fine Structure Constant
• Dark Energy in Perturbative String Cosmology

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