Edinburgh Research Explorer

Observational implications of mattergenesis during inflation

Research output: Contribution to journalArticle

Related Edinburgh Organisations

Documents

http://iopscience.iop.org/1475-7516/2014/10/053/
Original languageEnglish
Article number053
JournalJournal of Cosmology and Astroparticle Physics (JCAP)
Volume2014
Issue number10
DOIs
StatePublished - 1 Oct 2014

Abstract

The observed baryon asymmetry, as well as potentially an asymmetry in the dark matter sector, can be produced through dissipative particle production during inflation. A distinctive feature of this mechanism is the generation of matter isocurvature perturbations that are fully (anti-)correlated with the dominant adiabatic curvature perturbations. We show that chaotic warm inflation models yield anti-correlated isocurvature modes that may partially or even completely screen the contribution of primordial gravity waves to the CMB temperature power spectrum. The tensor-to-scalar ratio inferred from the latter may thus be parametrically smaller than the one deduced from B-mode polarization maps, which is particularly relevant in the light of the recently announced results of the BICEP2 experiment.

    Research areas

  • baryon asymmetry, ination, particle physics - cosmology connection, supersymmetry and cosmology

Download statistics

No data available

ID: 21303361