Dark-matter particles and baryons from inflation and spontaneous CP violation in the early universe

Details Dark-matter particles and baryons from inflation and spontaneous CP violation in the early universe Dark-matter particles and baryons from inflation and spontaneous CP violation in the early universe

2005-11-14

arxiv.org/abs/astro-ph/0511411v3

Mod.Phys.Lett.A21:1183-1188,2006

Astronomy and Astrophysics

Astrophysics

7 pages, appendix added

Scientific paper

10.1142/S0217732306020615

We present aspects of a model which attempts to unify the creation of cold dark matter, a CP-violating baryon asymmetry, and also a small, residual vacuum energy density, in the early universe. The model contains a primary scalar (inflaton) field and a primary pseudoscalar field, which are initially related by a cosmological, chiral symmetry. The nonzero vacuum expectation value of the pseudoscalar field spontaneously breaks CP invariance.

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