Physics – High Energy Physics – High Energy Physics - Phenomenology
Scientific paper
1997-12-09
Eur.Phys.J.C5:369-377,1998
Physics
High Energy Physics
High Energy Physics - Phenomenology
17 pages, 4 eps-figures. To be published in Zeitschr. fuer Physik C. Some comments concerning vacuum energy added
Scientific paper
10.1007/s100520050282
Within the framework of an explicit dynamical model, in which we calculate the radiatively-corrected, tree-level potential that sets up inflation, we show that the inflaton can be a significant part of dark matter today. We exhibit potentials with both a maximum and a minimum. Using the calculated position of the potential minimum, and an estimate for fluctuations of the inflaton field in the early universe, we calculate a contribution to the matter energy density of $(1-2)\times 10^{-47}\GeV^4$ in the present universe, from cold inflatons with mass of about $6\times 10^9\GeV$. We show that the inflaton might decay in a specific way, and we calculate a possible lifetime that is several orders of magnitude greater than the present age of the universe. Inflaton decay is related to an interaction which, together with a spontaneous breakdown of CP invariance at a cosmological energy scale, can give rise to a neutrino-antineutrino asymmetry just prior to the time of electroweak symmetry breaking.
Barshay S. S.
Kreyerhoff Georg
No associations
LandOfFree
The Inflaton As Dark Matter 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 Inflaton As Dark Matter, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and The Inflaton As Dark Matter will most certainly appreciate the feedback.
Profile ID: LFWR-SCP-O-16347