Negative coupling instability and grandunified baryogenesis
Abstract
I review my recent work with Brian Greene and Thomas Roos. First I discuss the effect of a negative cross-coupling on the inflaton decay in two scalar field theories. Our main finding is a new effect, the negative coupling instability, which leads to explosive particle production and very fast inflaton decay. Then I discuss the consequences of this instability for grandunified baryogenesis models. The novel aspect of this review is an intuitive explanation of the negative coupling instability, using field trajectories in the configuration space.
Keywords
Cite
@article{arxiv.hep-ph/9708428,
title = {Negative coupling instability and grandunified baryogenesis},
author = {Tomislav Prokopec},
journal= {arXiv preprint arXiv:hep-ph/9708428},
year = {2007}
}
Comments
7 pages + 5 figures, LaTeX with sprocl.sty macro (get it from http://xxx.lanl.gov/ftp/hep-th/papers/macros), slightly extended version of the Proceedings of Strong and Electroweak Matter '97, Eger, Hungary, 21-25 May 1997