Dark Matter from R2 Gravity

被引：162

作者：

Cembranos, Jose A. R. ^{[1
]}

机构：

[1] Univ Minnesota, William I Fine Theoret Phys Inst, Minneapolis, MN 55455 USA

来源：

PHYSICAL REVIEW LETTERS | 2009年 / 102卷 / 14期

关键词：

INFLATION; COSMOLOGY; FIELD;

D O I：

10.1103/PhysRevLett.102.141301

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

The modification of Einstein gravity at high energies is mandatory from a quantum approach. In this work, we point out that this modification necessarily introduces new degrees of freedom. We analyze the possibility that these new gravitational states can provide the main contribution to the nonbaryonic dark matter of the Universe. By following an effective field theory approach, we illustrate this idea with the first and simplest high energy modification of the Einstein-Hilbert action: R-2 gravity.

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页数：4

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