The Cosmological Constant and the Brane World Scenario

Details The Cosmological Constant and the Brane World Scenario The Cosmological Constant and the Brane World Scenario

2001-01-02

arxiv.org/abs/hep-ph/0101015v1

Physics

High Energy Physics

High Energy Physics - Phenomenology

16 pages, Latex, Contribution to the Proceedings of Cosmo00, Cheju Island, Korea

Scientific paper

Although the cosmological constant has primarily cosmological consequences, its smallness poses one of the basic problems in particle physics. Various attempts have been made to explain this mystery, but no satisfactory solution has been found yet. The appearance of extra dimensions in the framework of brane world systems seems to provide some new ideas to address this problem form a different point of view. We shall discuss some of these new approaches and see whether or not they lead to an improvement of the situation. We shall conclude that we are still far from a solution of the problem.

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