期刊
PHYSICS LETTERS B
卷 711, 期 1, 页码 128-131出版社
ELSEVIER
DOI: 10.1016/j.physletb.2012.03.070
关键词
Renormalization group; Higher derivative gravity; Unitarity
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. (C) 2012 Elsevier B.V. All rights reserved.
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