Effective Field Theory of Gravity, Reduction of Couplings and the Renormalization Group

Details Effective Field Theory of Gravity, Reduction of Couplings and the Renormalization Group Effective Field Theory of Gravity, Reduction of Couplings and the Renormalization Group

1996-05-31

arxiv.org/abs/hep-ph/9605455v1

Phys.Rev. D54 (1996) 4973-4981

Physics

High Energy Physics

High Energy Physics - Phenomenology

24 pages, Latex

Scientific paper

10.1103/PhysRevD.54.4973

The structure of the renormalization group equations for the low energy effective theory of gravity coupled to a scalar field is presented. An approximate solution to these equations with a finite number of independent renormalized parameters can be found when the mass scale characteristic of the fluctuations in the geometry is much smaller than the Planck mass. The cosmological constant problem is reformulated in this context and some conditions on the matter field content and interactions required in order to have a sufficiently small cosmological constant are identified.

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