Dynamically Broken Scale Invariance and Cosmology

Details Dynamically Broken Scale Invariance and Cosmology Dynamically Broken Scale Invariance and Cosmology

1997-08-20

arxiv.org/abs/hep-ph/9708400v1

Physics

High Energy Physics

High Energy Physics - Phenomenology

4 pages, REVTeX, no figure

Scientific paper

A new scalar-tensor theory of gravity induced by dynamically broken scale invariance is proposed, and its cosmological implications are discussed. It is found that the model admits an inflation via the Hawking-Moss bubbling, but the inflation rate remains undetermined due to the strong gravity limit. In light of this, scale-invariant metric perturbations having a dominant tensor component can be generated without slow-rollover. In addition, the deviation from the standard hot big-bang is vanishingly small after inflation.

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