Physics – High Energy Physics – High Energy Physics - Theory
Scientific paper
2011-09-19
Physics
High Energy Physics
High Energy Physics - Theory
8 pages, 2 figures, abstract modified, a paragraph added, new references added, typos corrected, version to appear in Physics
Scientific paper
Fourth order derivative gravity in 3+1-dimensions is perturbatively renormalizable and is shown to describe a unitary theory of gravitons in a limited coupling parameter space. The running gravitational constant which includes graviton contribution is computed. Generically, gravitational Newton's constant vanishes at short distances in this perturbatively renormalizable and unitary theory.
Anishetty Ramesh
Narain Gaurav
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