Physics – High Energy Physics – High Energy Physics - Phenomenology
Scientific paper
2001-03-23
JHEP 0106:020,2001
Physics
High Energy Physics
High Energy Physics - Phenomenology
17 pages, 5 Postscript figures, corrected some typos
Scientific paper
10.1088/1126-6708/2001/06/020
Many models of supersymmetry breaking, in the context of either supergravity or superstring theories, predict the presence of particles with Planck-suppressed couplings and masses around the weak scale. These particles are generically called moduli. The excessive production of moduli in the early Universe jeopardizes the successful predictions of nucleosynthesis. In this paper we show that the efficient generation of these dangerous relics is an unescapable consequence of a wide variety of inflationary models which have a preheating stage. Moduli are generated as coherent states in a novel way which differs from the usual production mechanism during parametric resonance. The corresponding limits on the reheating temperature are often very tight and more severe than the bound of 10^9 GeV coming from the production of moduli via thermal scatterings during reheating.
Giudice Gian F.
Riotto Antonio
Tkachev Igor I.
No associations
LandOfFree
The Cosmological Moduli Problem and Preheating does not yet have a rating. At this time, there are no reviews or comments for this scientific paper.
If you have personal experience with The Cosmological Moduli Problem and Preheating, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and The Cosmological Moduli Problem and Preheating will most certainly appreciate the feedback.
Profile ID: LFWR-SCP-O-192806