Dimensional Reduction in the Early Universe: Where Have the Massive Particles Gone?
Nov, 19835 pages
Published in:
- Phys.Lett.B 135 (1984) 378
- Published: 1984
Report number:
- FERMILAB-PUB-83-088-A
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Abstract: (Elsevier)
In many models based on reduction from greater than four dimensions, there are absolutely stable particles with masses of order R −1 ( R is the compactification scale). If the temperature of the universe were ever close to R −1 , these massive states would have been present and some would have survived annihilation. We calculate the present mass density due to these particles and find both the five-dimensional model and some versions of N = 8 supergravity to be unacceptable. We discuss some possible solutions to this problem.- ASTROPHYSICS
- FIELD THEORY: HIGHER-DIMENSIONAL
- FIELD THEORY: FIVE-DIMENSIONAL
- FIELD THEORY: DIMENSIONAL REDUCTION
- SUPERGRAVITY
- PARTICLE: MASSIVE
- MASSIVE: PARTICLE
- POSTULATED PARTICLE: GRAVITON
- ENTROPY
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