Other
Scientific paper
Feb 1986
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1986phrvd..33..869k&link_type=abstract
Physical Review D (Particles and Fields), Volume 33, Issue 4, 15 February 1986, pp.869-871
Other
147
Field Theories In Dimensions Other Than Four, Gravity In More Than Four Dimensions, Kaluza-Klein Theory, Unified Field Theories, Alternative Theories Of Gravity, Determination Of Fundamental Constants, Particle-Theory And Field-Theory Models Of The Early Universe
Scientific paper
In theories with extra dimensions, the dependence of fundamental constants on the volume of the compact space allows one to use primordial nucleosynthesis to probe the structure of compact dimensions during the first few minutes after the big bang. Requiring the yield of primordial sup4He to be within acceptable limits, we find that in ten-dimensional superstring models the size of the extra dimensions during primordial nucleosynthesis must have been within 0.5% of their current value, while in Kaluza-Klein models the extra dimensions must have been within 1% of their current value.
Kolb Edward W.
Perry Malcolm J.
Walker Terry P.
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