Chiral asymmetry during the EWPT from CP-violating scattering off bubble walls

Alejandro Ayala; L. A. Hernández; Jordi Salinas

doi:10.1051/epjconf/201817208001

EPJ

a
b
d
e
ap
st
h
plus

Proceedings

Open Access

EPJ Web of Conferences 172, 08001 (2018)
https://doi.org/10.1051/epjconf/201817208001

Chiral asymmetry during the EWPT from CP-violating scattering off bubble walls

Alejandro Ayala¹^,2^*, L. A. Hernández¹^** and Jordi Salinas¹^***

¹ Instituto de Ciencias Nucleares, Universidad Nacional Autónoma de México, Apartado Postal 70-543, Ciudad de México 04510, México
² Centre for Theoretical and Mathematical Physics, and Department of Physics, University of Cape Town, Rondebosch 7700, South Africa

^* e-mail: ayala@nucleares.unam.mx
^** e-mail: luis.hernandezr@correo.nucleares.unam.mx
^*** e-mail: jordissm@ciencias.unam.mx

Published online: 26 January 2018

Abstract

We compute a net electric current during a first order EWPT arising from the asymmetric propagation of fermion chiral modes due to a CP-violating interaction with the Higgs. The interaction is quantified in terms of a CP-violating phase in the bubble wall that separate both phases. We comment on the possibility of this current to generate a seed magnetic field and its implications for primordial magnetogenesis in the early Universe.

© The Authors, published by EDP Sciences, 2018

This is an Open Access article distributed under the terms of the Creative Commons Attribution License 4.0, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited. (http://creativecommons.org/licenses/by/4.0/).