Dimensional Reduction in the Early Universe: Where Have the Massive Particles Gone?

Nov, 1983
5 pages
Published in:
  • Phys.Lett.B 135 (1984) 378
  • Published: 1984
Report number:
  • FERMILAB-PUB-83-088-A

Citations per year

1983199320032013202302468101214
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