Dynamical CP Violation in the Early Universe
High Energy Physics - Phenomenology
2014-11-17 v3 Astrophysics
General Relativity and Quantum Cosmology
High Energy Physics - Theory
Abstract
Following earlier ideas of Dolgov, we show that the asymmetrical dynamical evolution of fields in the early Universe provides a new source for CP violation. This can lead to baryogenesis without any additional CP-violating interactions. The magnitude of this CP violation is time-dependent. In particular, it vanishes (or is very small) in the late Universe after the fields have relaxed (or are in their final approach) to their vacuum values. We provide an explicit example in which our mechanism is realized.
Keywords
Cite
@article{arxiv.hep-ph/0403014,
title = {Dynamical CP Violation in the Early Universe},
author = {K. R. S. Balaji and Tirthabir Biswas and Robert H. Brandenberger and David London},
journal= {arXiv preprint arXiv:hep-ph/0403014},
year = {2014}
}
Comments
9 pages, latex, 1 figure (enclosed). The idea of the previous version was correct, but there were errors in its implementation. This has now been corrected -- some text modified, references added. Also, one author has been added