Quantum scale invariance, cosmological constant and hierarchy problem

Details Quantum scale invariance, cosmological constant and hierarchy problem Quantum scale invariance, cosmological constant and hierarchy problem

2008-09-19

arxiv.org/abs/0809.3406v3

Phys.Lett.B671:162-166,2009

Physics

High Energy Physics

High Energy Physics - Theory

6 pages, replaced with journal version

Scientific paper

10.1016/j.physletb.2008.11.041

We construct a class of theories which are scale invariant on quantum level in all orders of perturbation theory. In a subclass of these models scale invariance is spontaneously broken, leading to the existence of a massless dilaton. The applications of these results to the problem of stability of the electroweak scale against quantum corrections, to the cosmological constant problem and to dark energy are discussed.

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