Supergravity inspired Vector Curvaton

Details Supergravity inspired Vector Curvaton Supergravity inspired Vector Curvaton

2007-05-23

arxiv.org/abs/0705.3334v1

Phys.Rev.D76:063506,2007

Physics

High Energy Physics

High Energy Physics - Phenomenology

16 pages, 1 figure, RevTeX

Scientific paper

10.1103/PhysRevD.76.063506

It is investigated whether a massive Abelian vector field, whose gauge kinetic function is growing during inflation, can be responsible for the generation of the curvature perturbation in the Universe. Particle production is studied and it is shown that the vector field can obtain a scale invariant superhorizon spectrum of perturbations with a reasonable choice of kinetic function. After inflation the vector field begins coherent oscillations, during which it corresponds to pressureless isotropic matter. When the vector field dominates the Universe its perturbations give rise to the observed curvature perturbation following the curvaton scenario. It is found that this is possible if, after the end of inflation, the mass of the vector field increases at a phase transition at temperature of order 1 TeV or lower. Inhomogeneous reheating, whereby the vector field modulates the decay rate of the inflaton, is also studied.

Affiliated with

Also associated with

No associations

Rating

Supergravity inspired Vector Curvaton 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 Supergravity inspired Vector Curvaton, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Supergravity inspired Vector Curvaton will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFWR-SCP-O-401677