A spectator scalar field coupled to the inflaton and to spacetime curvature yields a first-order correction to the baryon asymmetry in spontaneous baryogenesis, potentially enhancing it by orders of magnitude for small coupling g.
Inflationary gravitational waves and exotic pre Big Bang Nucleosynthesis cosmology
1 Pith paper cite this work. Polarity classification is still indexing.
1
Pith paper citing it
abstract
According to the most popular scenario, the early Universe should have experienced an accelerated expansion phase, called Cosmological Inflation, after which the standard Big Bang Cosmology would have taken place giving rise to the radiation-dominated epoch. However, the details of the inflationary scenario are far to be completely understood. Thus, in this paper we study if possible additional (exotic) cosmological phases could delay the beginning of the standard Big Bang history and alter some theoretical predictions related to the inflationary cosmological perturbations, like, for instance, the order of magnitude of the tensor-to-scalar ratio $r$.
fields
gr-qc 1years
2025 1verdicts
CONDITIONAL 1representative citing papers
citing papers explorer
-
Impact of a complex scalar spectator field on baryon asymmetry within spontaneous baryogenesis
A spectator scalar field coupled to the inflaton and to spacetime curvature yields a first-order correction to the baryon asymmetry in spontaneous baryogenesis, potentially enhancing it by orders of magnitude for small coupling g.