Light Scalars in Cosmology

Details Light Scalars in Cosmology Light Scalars in Cosmology

2000-09-04

arxiv.org/abs/hep-ph/0009030v1

Physics

High Energy Physics

High Energy Physics - Phenomenology

10 pages. To appear in the Proceedings of Dark Matter 2000, Santa Monica, California, February 2000

Scientific paper

I discuss here some of the constraints imposed by quantum and gravitational corrections on two hypothetical excitations, axions and quintessence, which have important cosmological implications. Although these corrections can be kept under control, the resulting constraints are not too natural. In particular, to keep the quintessence field light one must essentially decouple it from ordinary matter. Some possible suggestions of how to avoid these troubles are briefly touched upon.

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