Varying Constants in Brane World Scenarios

Details Varying Constants in Brane World Scenarios Varying Constants in Brane World Scenarios

2002-10-03

arxiv.org/abs/hep-ph/0210057v2

Astrophys.Space Sci. 283 (2003) 627-632

Physics

High Energy Physics

High Energy Physics - Phenomenology

5 pages, LaTeX, 5 figures; based on a talk given by C. van de Bruck at JENAM 2002, Porto; typos corrected

Scientific paper

10.1023/A:1022543206870

Higher-dimensional theories imply that some constants, such as the gravitational constant and the strength of the gauge-couplings, are not fundamental constants. Instead they are related to the sizes of the extra--dimensional space, which are moduli fields in the four--dimensional effective theory. We study the cosmological evolution of the moduli fields appearing in brane world scenarios and discuss the implications for varying constants.

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