Leptogenesis and Primordial Magnetic Fields
Cosmology and Nongalactic Astrophysics
2014-03-05 v2 High Energy Physics - Phenomenology
High Energy Physics - Theory
Abstract
The anomalous conversion of leptons into baryons during leptogenesis is shown to produce a right-handed helical magnetic field; in contrast, the magnetic field produced during electroweak baryogenesis is known to be left-handed. If the cosmological medium is turbulent, the magnetic field evolves to have a present day coherence scale and field strength that are of astrophysical interest. Observations of the amplitude, coherence scale, and helicity of the intergalactic magnetic field promise to provide a powerful probe of physics beyond the Standard Model and the very early universe.
Cite
@article{arxiv.1309.2315,
title = {Leptogenesis and Primordial Magnetic Fields},
author = {Andrew J. Long and Eray Sabancilar and Tanmay Vachaspati},
journal= {arXiv preprint arXiv:1309.2315},
year = {2014}
}
Comments
v2: 21 pages, no figures; expanded JCAP version