The cosmological constant and the fate of the cosmon in Weyl conformal gravity

J. Solà

doi:10.1016/0370-2693(89)91552-9

The cosmological constant and the fate of the cosmon in Weyl conformal gravity

J. Solà

Department of Catalan Studies

Research output: Contribution to journal › Article › Research › peer-review

38 Citations (Scopus)

Abstract

We discuss a generalization of the cosmon model by turning its global dilatation invariance into a local conformal invariance. In a Weyl realization of this symmetry, the "would-be" cosmon field is eaten up by a conformal gauge boson which acquires a large mass. The new model is used to relax the cosmological constant to zero by means of a probabilistic mechanism first suggested by Hawking in the framework of euclidean quantum gravity. © 1989.

Original language	English
Pages (from-to)	317-324
Journal	Physics Letters B
Volume	228
Issue number	3
DOIs	https://doi.org/10.1016/0370-2693(89)91552-9
Publication status	Published - 21 Sep 1989

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