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

Saul Barshay·Georg Kreyerhoff
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Abstract

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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Saul Barshay, Georg Kreyerhoff. 2006-04-24. Dark-matter particles and baryons from inflation and spontaneous CP violation in the early universe. https://doi.org/10.1142/s0217732306020615

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