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Particle production and reheating of the inflationary universe

Lookup NU author(s): Professor Ian MossORCiD, Dr Chris Graham

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Abstract

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

Publication metadata

Author(s): Moss IG, Graham C

Publication type: Article

Publication status: Published

Journal: Physical Review D

Year: 2008

Volume: 78

Issue: 12

ISSN (print): 1550-7998

ISSN (electronic): 1089-4918

Publisher: American Physical Society

URL: http://dx.doi.org/10.1103/PhysRevD.78.123526

DOI: 10.1103/PhysRevD.78.123526

Notes: Article no. 123526 12 pages

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