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On Baryogenesis from a Complex Inflaton

James Unwin

TL;DR

While asymmetries were found to be significantly smaller than previously calculated, in certain parameter regions, baryogenesis can still be achieved.

Abstract

We derive the particle asymmetry due to inflationary baryogenesis involving a complex inflaton, obtaining a different result to that in the literature. While asymmetries are found to be significantly smaller than previously calculated, in certain parameter regions baryogenesis can still be achieved.

On Baryogenesis from a Complex Inflaton

TL;DR

While asymmetries were found to be significantly smaller than previously calculated, in certain parameter regions, baryogenesis can still be achieved.

Abstract

We derive the particle asymmetry due to inflationary baryogenesis involving a complex inflaton, obtaining a different result to that in the literature. While asymmetries are found to be significantly smaller than previously calculated, in certain parameter regions baryogenesis can still be achieved.

Paper Structure

This paper contains 5 sections, 48 equations.

Table of Contents

  1. Introduction
  2. The inflaton asymmetry
  3. The Baryon asymmetry
  4. Conclusions
  5. APPENDIX: CHANGING VARIABLES