Particle production in string cosmology models

Details Particle production in string cosmology models Particle production in string cosmology models

1997-09-02

arxiv.org/abs/hep-th/9709022v1

Phys.Rev. D57 (1998) 725-740

Physics

High Energy Physics

High Energy Physics - Theory

20 pages, no figures, latex, RevTex

Scientific paper

10.1103/PhysRevD.57.725

We compute spectra of particles produced during a dilaton-driven kinetic inflation phase within string cosmology models. The resulting spectra depend on the parameters of the model and on the type of particle and are quite varied, some increasing and some decreasing with frequency. We use an approximation scheme in which all spectra can be expressed in a nice symmetric form, perhaps hinting at a deeper symmetry of the underlying physics. Our results may serve as a starting point for detailed studies of relic abundances, dark matter candidates, and possible sources of large scale anisotropy.

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