Baryon asymmetry of the universe generated by scalar field condensate baryogenesis model in different inflationary scenarios

Abstract

We calculate the baryon asymmetry value generated in the Scalar Field Condensate (SCF) baryogenesis model obtained in several inflationary scenarios and different reheating models. We provide analysis of the baryon asymmetry value obtained for more than 70 sets of parameters of the SCF model and the following inflationary scenarios, namely: new inflation, chaotic inflation, Starobinsky inflation, MSSM inflation, quintessential inflation. We considered both cases of efficient thermalization after inflation and also delayed thermalization. We have found that SFC baryogenesis model produces baryon asymmetry by orders of magnitude bigger than the observed one for the following inflationary models: new inflation, new inflation model by Shafi and Vilenkin, MSSM inflation, chaotic inflation with high reheating temperature and the simplest Shafi-Vilenkin chaotic inflationary model. For these models strong diluting mechanisms are needed to reduce the resultant baryon excess at low energies to its observational value today. We have found that a successful generation of the observed baryon asymmetry is possible by SCF baryogenesis model in Modified Starobinsky inflation, chaotic inflation with low reheating temperature, chaotic inflation in SUGRA and Quintessential inflation.

Favored Inflationary Models by Scalar Field Condensate Baryogenesis

“…First consideration of SFC baryogenesis model in different inflationary scenarios and preliminary results were reported in ref. [64,65]. In the present work we considered all B-excess values in the whole range of studied parameter sets of the SFC baryogenesis model.…”

Did the Universe Construct Itself?

“…Such a symmetry breaking could not be seen were the universe to start with very many particles as in the standard Big Bang model. Only tiny fluctuations would be seen, as is normally assumed to account for the prevalence of matter over antimatter at one part in 5 × 10 7 [35].…”