Negative coupling instability and grandunified baryogenesis

Details Negative coupling instability and grandunified baryogenesis Negative coupling instability and grandunified baryogenesis

1997-08-22

arxiv.org/abs/hep-ph/9708428v1

Physics

High Energy Physics

High Energy Physics - Phenomenology

7 pages + 5 figures, LaTeX with sprocl.sty macro (get it from http://xxx.lanl.gov/ftp/hep-th/papers/macros), slightly extended

Scientific paper

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.

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