Physics – High Energy Physics – High Energy Physics - Phenomenology
Scientific paper
1996-12-05
Phys.Rev. D55 (1997) 7815-7825
Physics
High Energy Physics
High Energy Physics - Phenomenology
30 pages, 10 figures in enhanced postscript, 2 unreadable figures made accessible
Scientific paper
10.1103/PhysRevD.55.7815
The term `preheating' has been introduced recently to denote the process in which energy is transferred from a classical inflaton field into fluctuating field (particle) degrees of freedom without generating yet a real thermal ensemble. The models considered up to now include, besides the inflaton field, scalar or fermionic fluctuations. On the other hand the typical ingredient of an inflationary scenario is a nonabelian spontaneously broken gauge theory. So the formalism should also be developed to include gauge field fluctuations excited by the inflaton or Higgs field. We have chosen here, as the simplest nonabelian example, the SU(2) Higgs model. We consider the model at temperature zero. From the technical point of view we generalize an analytical and numerical renormalized formalism developed by us recently to coupled channnel systems. We use the 't Hooft-Feynman gauge and dimensional regularization. We present some numerical results but reserve a more exhaustive discussion of solutions within the paramter space of two couplings and the initial value of the Higgs field to a future publication.
Baacke Juergen
Heitmann Katrin
Paetzold Carsten
No associations
LandOfFree
Nonequilibrium dynamics: preheating in the SU(2) Higgs model does not yet have a rating. At this time, there are no reviews or comments for this scientific paper.
If you have personal experience with Nonequilibrium dynamics: preheating in the SU(2) Higgs model, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Nonequilibrium dynamics: preheating in the SU(2) Higgs model will most certainly appreciate the feedback.
Profile ID: LFWR-SCP-O-242968