Dynamical Cosmological Constant and Relations Among Pseudo Goldstone Bosons
Abstract
The present apparent cosmological constant is interpreted as the potential of the lightest pseudo Goldstone boson. Some numerical relations among cosmological parameters and particle masses are shown to arise from the mixture of this very light particle, whose interaction is of the gravitational order, with other pseudo Goldstone bosons like the pion and the axion which feel the strong interaction.
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