Newton's constant in f(R,R_{μν}R^{μν},\Box R) theories of gravity and constraints from BBN

Details Newton's constant in f(R,R_{μν}R^{μν},\Box R) theories of gravity and constraints from BBN Newton's constant in f(R,R_{μν}R^{μν},\Box R) theories of gravity and constraints from BBN

2009-02-06

arxiv.org/abs/0902.1185v3

Phys.Rev.D79:104006,2009

Astronomy and Astrophysics

Astrophysics

Cosmology and Extragalactic Astrophysics

v1: 6 pages, 3 figures v2: Corrected minor error in Sec. IV (conclusions unaffected), references added v3: Changes match publi

Scientific paper

10.1103/PhysRevD.79.104006

We consider corrections to the Einstein-Hilbert action which contain both higher order and nonlocal terms. We derive an effective Newtonian gravitational constant applicable at the weak field limit and use the primordial nucleosynthesis (BBN) bound and the local gravity constraints on $G_{eff}$ in order to test the viability of several cases of our general Lagrangian. We will also provide a BBN constrain on the $\Box R$ gravitational correction.

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