Energy-momentum of a Cosmological Brane Model and the Gauge Hierarchy

Details Energy-momentum of a Cosmological Brane Model and the Gauge Hierarchy Energy-momentum of a Cosmological Brane Model and the Gauge Hierarchy

2007-07-28

arxiv.org/abs/0707.4217v2

Int.J.Theor.Phys.47:3391-3400,2008

Physics

High Energy Physics

High Energy Physics - Theory

11 pages; accepted by International Journal of Theoretical Physics

Scientific paper

10.1007/s10773-008-9770-6

We analyze the general covariant energy-momentum tensor of the gravitational system in genreal five-dimensional cosmological brane-world models. Then through calculating this energy-momentum for the cosmological generalization of the Randall-Sundrum model, which includes the original RS model as the static limit, we are able to show that the weakness of the gravitation on the "visible" brane is a general feature of this model. This is the origin of the gauge hierarchy from a gravitational point of view. Our results are also consistent with the fact that a gravitational system has vanishing total energy.

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