Particle production and reheating in the inflationary universe

Details Particle production and reheating in the inflationary universe Particle production and reheating in the inflationary universe

2008-10-11

arxiv.org/abs/0810.2039v2

Phys.Rev.D78:123526,2008

Physics

High Energy Physics

High Energy Physics - Phenomenology

16 pages, 12 figures, LaTeX, extra references in v2

Scientific paper

10.1103/PhysRevD.78.123526

Thermal field theory is applied to particle production rates in inflationary models, leading to new results for catalysed, or two-stage decay, where massive fields act as decay channels for the production of light fields. A numerical investigation of the Bolztmann equation in an expanding universe shows that the particle distributions produced during small amplitude inflaton oscillations or alongside slowly moving inflaton fields can thermalise.

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